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soft_solder
solder that melts at a relatively low temperature
soft_solder: solder that melts at a relatively low temperature
solder
an alloy (usually of lead and tin) used when melted to join two metal surfaces
solder: an alloy (usually of lead and tin) used when melted to join two metal surfaces
gold_dust
the particles and flakes (and sometimes small nuggets) of gold obtained in placer mining
gold_dust: the particles and flakes (and sometimes small nuggets) of gold obtained in placer mining
white_gold
a pale alloy of gold usually with platinum or nickel or palladium
white_gold: a pale alloy of gold usually with platinum or nickel or palladium
Monel_metal
an alloy of nickel and copper and other metals (such as iron and/or manganese and/or aluminum)
Monel_metal: an alloy of nickel and copper and other metals (such as iron and/or manganese and/or aluminum)
type_metal
an alloy of tin and lead and antimony used to make printing type
type_metal: an alloy of tin and lead and antimony used to make printing type
white_metal
an alloy (often of lead or tin base) used for bearings
white_metal: an alloy (often of lead or tin base) used for bearings
alluvial_soil
a fine-grained fertile soil deposited by water flowing over flood plains or in river beds
alluvial_soil: a fine-grained fertile soil deposited by water flowing over flood plains or in river beds
allyl_alcohol
an unsaturated primary alcohol present in wood spirit; use to make resins and plasticizers and pharmaceuticals
allyl_alcohol: an unsaturated primary alcohol present in wood spirit; use to make resins and plasticizers and pharmaceuticals
allyl_resin
a resin derived from allyl alcohol that hardens when cured; used as an adhesive
allyl_resin: a resin derived from allyl alcohol that hardens when cured; used as an adhesive
alpha-beta_brass
a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products
alpha-beta_brass: a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products
alpha_brass
an alloy of brass and zinc; used mainly for cold working
alpha_brass: an alloy of brass and zinc; used mainly for cold working
alpha_bronze
an alloy of copper and tin that can be worked
alpha_bronze: an alloy of copper and tin that can be worked
alpha_iron
a magnetic allotrope of iron; stable below 906 degrees centigrade
alpha_iron: a magnetic allotrope of iron; stable below 906 degrees centigrade
alpha-tocopheral
a potent form of vitamin E obtained from germ oils or by synthesis
alpha-tocopheral: a potent form of vitamin E obtained from germ oils or by synthesis
carotenoid
any of a class of highly unsaturated yellow to red pigments occurring in plants and animals
carotenoid: any of a class of highly unsaturated yellow to red pigments occurring in plants and animals
carotene
yellow or orange-red fat-soluble pigments in plants
carotene: yellow or orange-red fat-soluble pigments in plants
lycopene
carotenoid that makes tomatoes red; may lower the risk of prostate cancer
lycopene: carotenoid that makes tomatoes red; may lower the risk of prostate cancer
beta-carotene
an isomer of carotene that is found in dark green and dark yellow fruits and vegetables
beta-carotene: an isomer of carotene that is found in dark green and dark yellow fruits and vegetables
xanthophyll
yellow carotenoid pigments in plants and animal fats and egg yolks
xanthophyll: yellow carotenoid pigments in plants and animal fats and egg yolks
zeaxanthin
yellow carotenoid (isomeric with lutein and occurs widely with it) that is the main pigment in yellow Indian corn
zeaxanthin: yellow carotenoid (isomeric with lutein and occurs widely with it) that is the main pigment in yellow Indian corn
betaine
a sweet tasting alkaloid that occurs in sugar beets
betaine: a sweet tasting alkaloid that occurs in sugar beets
beta_iron
an allotrope of iron that is the same as alpha iron except that it is nonmagnetic; stable between 768 and 906 degrees centigrade
beta_iron: an allotrope of iron that is the same as alpha iron except that it is nonmagnetic; stable between 768 and 906 degrees centigrade
gamma_iron
a nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade
gamma_iron: a nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade
delta_iron
an allotrope of iron that is stable between 1403 degrees centigrade and the melting point (= 1532 degrees)
delta_iron: an allotrope of iron that is stable between 1403 degrees centigrade and the melting point (= 1532 degrees)
amethyst
a transparent purple variety of quartz; used as a gemstone
amethyst: a transparent purple variety of quartz; used as a gemstone
amygdaloid
volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits
amygdaloid: volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits
aluminum_bronze
an alloy of copper and aluminum with high tensile strength and resistance to corrosion
aluminum_bronze: an alloy of copper and aluminum with high tensile strength and resistance to corrosion
activator
(biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription
activator: (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription
activating_agent
(mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral
activating_agent: (mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral
catalyst
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
catalyst: (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
biocatalyst
a biochemical catalyst such as an enzyme
biocatalyst: a biochemical catalyst such as an enzyme
sensitizer
(chemistry) a substance other than a catalyst that facilitates the start of a catalytic reaction
sensitizer: (chemistry) a substance other than a catalyst that facilitates the start of a catalytic reaction
amide
any organic compound containing the group -CONH2
amide: any organic compound containing the group -CONH2
inhibitor
a substance that retards or stops an activity
inhibitor: a substance that retards or stops an activity
antioxidant
substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
antioxidant: substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
rust_inhibitor
antioxidant that inhibits the formation of rust
rust_inhibitor: antioxidant that inhibits the formation of rust
anticatalyst
(chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst
anticatalyst: (chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst
actinolite
a green mineral of the amphibole group; calcium magnesium iron silicate
actinolite: a green mineral of the amphibole group; calcium magnesium iron silicate
andesite
a dark grey volcanic rock
andesite: a dark grey volcanic rock
anthophyllite
a dark brown mineral of the amphibole group; magnesium iron silicate
anthophyllite: a dark brown mineral of the amphibole group; magnesium iron silicate
asbestos
a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
asbestos: a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
chrysotile
a grey or green fibrous mineral; an important source of commercial asbestos
chrysotile: a grey or green fibrous mineral; an important source of commercial asbestos
tremolite
a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos
tremolite: a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos
hornblende
a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
hornblende: a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
aphanite
fine-grained homogeneous rock (such as basalt) containing minerals undetectable by the naked eye
aphanite: fine-grained homogeneous rock (such as basalt) containing minerals undetectable by the naked eye
aplite
light-colored and fine-grained granitic rock consisting chiefly of quartz and feldspars
aplite: light-colored and fine-grained granitic rock consisting chiefly of quartz and feldspars
afterdamp
a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
afterdamp: a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
dacite
a grey volcanic rock containing plagioclase and quartz and other crystalline minerals
dacite: a grey volcanic rock containing plagioclase and quartz and other crystalline minerals
firedamp
a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
firedamp: a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
carrier
an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
carrier: an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
moderator
any substance used to slow down neutrons in nuclear reactors
moderator: any substance used to slow down neutrons in nuclear reactors
heavy_water
water containing a substantial proportion of deuterium atoms, used in nuclear reactors
heavy_water: water containing a substantial proportion of deuterium atoms, used in nuclear reactors
organic_compound
any compound of carbon and another element or a radical
organic_compound: any compound of carbon and another element or a radical
protein
any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes
protein: any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes
recombinant_protein
a protein derived from recombinant DNA
recombinant_protein: a protein derived from recombinant DNA
actomyosin
a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions
actomyosin: a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions
aleurone
granular protein in outermost layer of endosperm of many seeds or cereal grains
aleurone: granular protein in outermost layer of endosperm of many seeds or cereal grains
amyloid
(pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue
amyloid: (pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue
apoenzyme
a protein that combines with a coenzyme to form an active enzyme
apoenzyme: a protein that combines with a coenzyme to form an active enzyme
beta-naphthol
an isomer of naphthol used in rubber as an antioxidant
beta-naphthol: an isomer of naphthol used in rubber as an antioxidant
gelatin
a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin
gelatin: a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin
chondrin
a substance that resembles gelatin and is obtained by boiling cartilage in water
chondrin: a substance that resembles gelatin and is obtained by boiling cartilage in water
mucin
a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces
mucin: a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces
conjugated_protein
a protein complex combining amino acids with other substances
conjugated_protein: a protein complex combining amino acids with other substances
actin
one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form
actin: one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form
albumin
a simple water-soluble protein found in many animal tissues and liquids
albumin: a simple water-soluble protein found in many animal tissues and liquids
lactalbumin
albumin occurring in milk
lactalbumin: albumin occurring in milk
serum_albumin
albumin occurring in blood serum; serves to maintain the somatic pressure of the blood
serum_albumin: albumin occurring in blood serum; serves to maintain the somatic pressure of the blood
alpha_globulin
a globulin in blood plasma or serum that is alkaline and has great electrophoretic mobility
alpha_globulin: a globulin in blood plasma or serum that is alkaline and has great electrophoretic mobility
serum_globulin
globulins occurring in blood serum and containing most of the antibodies of the blood
serum_globulin: globulins occurring in blood serum and containing most of the antibodies of the blood
C-reactive_protein
a byproduct of inflammation; a globulin that is found in the blood in some cases of acute inflammation
C-reactive_protein: a byproduct of inflammation; a globulin that is found in the blood in some cases of acute inflammation
keratin
a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
keratin: a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
chitin
a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi
chitin: a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi
enzyme
any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
enzyme: any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
fibrin
a white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots; it forms a network that traps red cells and platelets
fibrin: a white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots; it forms a network that traps red cells and platelets
filaggrin
the main protein of the keratohyalin granules
filaggrin: the main protein of the keratohyalin granules
growth_factor
a protein that is involved in cell differentiation and growth
growth_factor: a protein that is involved in cell differentiation and growth
nerve_growth_factor
a protein that is involved in the growth of peripheral nerve cells
nerve_growth_factor: a protein that is involved in the growth of peripheral nerve cells
haptoglobin
a protein in plasma that binds free hemoglobin and removes it (as from wounds)
haptoglobin: a protein in plasma that binds free hemoglobin and removes it (as from wounds)
iodoprotein
a protein that contains iodine
iodoprotein: a protein that contains iodine
nucleoprotein
any of several substances found in the nuclei of all living cells; consists of a protein bound to a nucleic acid
nucleoprotein: any of several substances found in the nuclei of all living cells; consists of a protein bound to a nucleic acid
opsin
retinal protein formed by the action of light on rhodopsin
opsin: retinal protein formed by the action of light on rhodopsin
phosphoprotein
containing chemically bound phosphoric acid
phosphoprotein: containing chemically bound phosphoric acid
casein
a milk protein used in making e.g. plastics and adhesives
casein: a milk protein used in making e.g. plastics and adhesives
amylase
any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar
amylase: any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar
angiotensin_converting_enzyme
proteolytic enzyme that converts angiotensin I into angiotensin II
angiotensin_converting_enzyme: proteolytic enzyme that converts angiotensin I into angiotensin II
cholinesterase
an enzyme that hydrolyses acetylcholine (into choline and acetic acid)
cholinesterase: an enzyme that hydrolyses acetylcholine (into choline and acetic acid)
coagulase
an enzyme that induces coagulation
coagulase: an enzyme that induces coagulation
collagenase
any enzyme that catalyzes the hydrolysis of collagen and gelatin
collagenase: any enzyme that catalyzes the hydrolysis of collagen and gelatin
complement
one of a series of enzymes in the blood serum that are part of the immune response
complement: one of a series of enzymes in the blood serum that are part of the immune response
plasma_protein
any of the proteins in blood plasma
plasma_protein: any of the proteins in blood plasma
prostate_specific_antigen
a protein manufactured exclusively by the prostate gland; PSA is produced for the ejaculate where it liquifies the semen and allows sperm cells to swim freely; elevated levels of PSA in blood serum are associated with benign prostatic hyperplasia and prostate cancer
prostate_specific_antigen: a protein manufactured exclusively by the prostate gland; PSA is produced for the ejaculate where it liquifies the semen and allows sperm cells to swim freely; elevated levels of PSA in blood serum are associated with benign prostatic hyperplasia and prostate cancer
proteome
the full complement of proteins produced by a particular genome
proteome: the full complement of proteins produced by a particular genome
simple_protein
a protein that yields only amino acids when hydrolyzed
simple_protein: a protein that yields only amino acids when hydrolyzed
thrombin
an enzyme that acts on fibrinogen in blood causing it to clot
thrombin: an enzyme that acts on fibrinogen in blood causing it to clot
tumor_necrosis_factor
a proinflammatory cytokine that is produced by white blood cells (monocytes and macrophages); has an antineoplastic effect but causes inflammation (as in rheumatoid arthritis)
tumor_necrosis_factor: a proinflammatory cytokine that is produced by white blood cells (monocytes and macrophages); has an antineoplastic effect but causes inflammation (as in rheumatoid arthritis)
catalase
enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into oxygen and water
catalase: enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into oxygen and water
cyclooxygenase
either of two related enzymes that control the production of prostaglandins and are blocked by aspirin
cyclooxygenase: either of two related enzymes that control the production of prostaglandins and are blocked by aspirin
cyclooxygenase-1
an enzyme that regulates prostaglandins that are important for the health of the stomach lining and kidneys
cyclooxygenase-1: an enzyme that regulates prostaglandins that are important for the health of the stomach lining and kidneys