noun
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chaff
|
material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds
|
chaff: material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds
|
bran
|
broken husks of the seeds of cereal grains that are separated from the flour by sifting
|
bran: broken husks of the seeds of cereal grains that are separated from the flour by sifting
|
chalcedony
|
a milky or greyish translucent to transparent quartz
|
chalcedony: a milky or greyish translucent to transparent quartz
|
chalk
|
a soft whitish calcite
|
chalk: a soft whitish calcite
|
chamosite
|
a greenish grey or black silicate of iron and aluminum
|
chamosite: a greenish grey or black silicate of iron and aluminum
|
chemical
|
material produced by or used in a reaction involving changes in atoms or molecules
|
chemical: material produced by or used in a reaction involving changes in atoms or molecules
|
neurochemical
|
any organic substance that occurs in neural activity
|
neurochemical: any organic substance that occurs in neural activity
|
neurotransmitter
|
a neurochemical that transmits nerve impulses across a synapse
|
neurotransmitter: a neurochemical that transmits nerve impulses across a synapse
|
monoamine_neurotransmitter
|
a monoamine that is functionally important in neural transmission
|
monoamine_neurotransmitter: a monoamine that is functionally important in neural transmission
|
catecholamine
|
any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland
|
catecholamine: any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland
|
chromophore
|
the chemical group that gives color to a molecule
|
chromophore: the chemical group that gives color to a molecule
|
serotonin
|
a neurotransmitter involved in e.g. sleep and depression and memory
|
serotonin: a neurotransmitter involved in e.g. sleep and depression and memory
|
acetylcholine
|
a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems
|
acetylcholine: a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems
|
acyl_anhydrides
|
organic compounds that react with water to form an acid
|
acyl_anhydrides: organic compounds that react with water to form an acid
|
acyl_halide
|
organic compounds containing the group -COX where X is a halogen atom
|
acyl_halide: organic compounds containing the group -COX where X is a halogen atom
|
acetyl_chloride
|
colorless liquid acyl chloride (CH3COCl) that has a pungent odor
|
acetyl_chloride: colorless liquid acyl chloride (CH3COCl) that has a pungent odor
|
endorphin
|
a neurochemical occurring naturally in the brain and having analgesic properties
|
endorphin: a neurochemical occurring naturally in the brain and having analgesic properties
|
beta_endorphin
|
an endorphin produced by the pituitary gland that suppresses pain
|
beta_endorphin: an endorphin produced by the pituitary gland that suppresses pain
|
enkephalin
|
an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere
|
enkephalin: an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere
|
cheoplastic_metal
|
any alloy that fuses at low temperatures and can be used molding artificial teeth
|
cheoplastic_metal: any alloy that fuses at low temperatures and can be used molding artificial teeth
|
chernozemic_soil
|
a rich black loam of Russia
|
chernozemic_soil: a rich black loam of Russia
|
chisel_steel
|
steel used in making chisels
|
chisel_steel: steel used in making chisels
|
chlorine_dioxide
|
an explosive gas (ClO2) used chiefly in bleaching paper or starch or soap or flour and in water purification
|
chlorine_dioxide: an explosive gas (ClO2) used chiefly in bleaching paper or starch or soap or flour and in water purification
|
chlorine_water
|
an aqueous solution of chlorine used as a bleaching agent
|
chlorine_water: an aqueous solution of chlorine used as a bleaching agent
|
chloropicrin
|
a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas
|
chloropicrin: a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas
|
nitrochloromethane
|
gaseous form of chloropicrin used as tear gas
|
nitrochloromethane: gaseous form of chloropicrin used as tear gas
|
chlorpyrifos
|
a common organophosphate insecticide
|
chlorpyrifos: a common organophosphate insecticide
|
choline
|
a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat
|
choline: a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat
|
chrome
|
another word for chromium when it is used in dyes or pigments
|
chrome: another word for chromium when it is used in dyes or pigments
|
chrome-nickel_steel
|
Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures
|
chrome-nickel_steel: Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures
|
chrome-tungsten_steel
|
a steel alloy made with chromium and tungsten
|
chrome-tungsten_steel: a steel alloy made with chromium and tungsten
|
chrome_green
|
any of a class of green pigments consisting of chrome yellow and iron blue
|
chrome_green: any of a class of green pigments consisting of chrome yellow and iron blue
|
Windsor_green
|
a light chrome green pigment
|
Windsor_green: a light chrome green pigment
|
Hooker's_green
|
green pigment consisting of Prussian blue mixed with gamboge
|
Hooker's_green: green pigment consisting of Prussian blue mixed with gamboge
|
chrome_yellow
|
any of several yellow pigments consisting of normal lead chromate and other lead compounds
|
chrome_yellow: any of several yellow pigments consisting of normal lead chromate and other lead compounds
|
chromic_acid
|
an unstable acid known only in solution and as chromate salts
|
chromic_acid: an unstable acid known only in solution and as chromate salts
|
chromate
|
any salt or ester of chromic acid
|
chromate: any salt or ester of chromic acid
|
lead_chromate
|
a poisonous chromate of lead used as a pigment in paint
|
lead_chromate: a poisonous chromate of lead used as a pigment in paint
|
chrysolite
|
a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
|
chrysolite: a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
|
chrysoprase
|
a green variety of chalcedony valued as a gemstone
|
chrysoprase: a green variety of chalcedony valued as a gemstone
|
chylomicron
|
a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood
|
chylomicron: a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood
|
cigarette_paper
|
a strong tissue paper that burns evenly and is sufficiently porous to control the burning of the tobacco in a cigarette
|
cigarette_paper: a strong tissue paper that burns evenly and is sufficiently porous to control the burning of the tobacco in a cigarette
|
cinder_pig
|
pig iron containing a substantial proportion of slag
|
cinder_pig: pig iron containing a substantial proportion of slag
|
citric_acid
|
a weak water-soluble acid found in many fruits (especially citrus fruits); used as a flavoring agent
|
citric_acid: a weak water-soluble acid found in many fruits (especially citrus fruits); used as a flavoring agent
|
citrine
|
semiprecious yellow quartz resembling topaz
|
citrine: semiprecious yellow quartz resembling topaz
|
clay
|
a very fine-grained soil that is plastic when moist but hard when fired
|
clay: a very fine-grained soil that is plastic when moist but hard when fired
|
pipeclay
|
fine white clay used in making tobacco pipes and pottery and in whitening leather
|
pipeclay: fine white clay used in making tobacco pipes and pottery and in whitening leather
|
bentonite
|
an absorbent aluminum silicate clay formed from volcanic ash
|
bentonite: an absorbent aluminum silicate clay formed from volcanic ash
|
fireclay
|
a heat-resistant clay
|
fireclay: a heat-resistant clay
|
Kitty_Litter
|
granulated clay; placed in a container where it absorbs the waste products of a cat or dog
|
Kitty_Litter: granulated clay; placed in a container where it absorbs the waste products of a cat or dog
|
potter's_clay
|
clay that does not contain any iron; used in making pottery or for modeling
|
potter's_clay: clay that does not contain any iron; used in making pottery or for modeling
|
slip
|
potter's clay that is thinned and used for coating or decorating ceramics
|
slip: potter's clay that is thinned and used for coating or decorating ceramics
|
claystone
|
fine-grained rock consisting of compacted clay particles
|
claystone: fine-grained rock consisting of compacted clay particles
|
clunch
|
hardened clay
|
clunch: hardened clay
|
coal
|
fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
|
coal: fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
|
anthracite
|
a hard natural coal that burns slowly and gives intense heat
|
anthracite: a hard natural coal that burns slowly and gives intense heat
|
bituminous_coal
|
rich in tarry hydrocarbons; burns readily with a smoky yellow flame
|
bituminous_coal: rich in tarry hydrocarbons; burns readily with a smoky yellow flame
|
lignite
|
intermediate between peat and bituminous coal
|
lignite: intermediate between peat and bituminous coal
|
sea_coal
|
pulverized bituminous coal; used as a foundry facing
|
sea_coal: pulverized bituminous coal; used as a foundry facing
|
steam_coal
|
coal suitable for use under steam boilers
|
steam_coal: coal suitable for use under steam boilers
|
Clorox
|
a commercial bleaching agent
|
Clorox: a commercial bleaching agent
|
coagulant
|
an agent that produces coagulation
|
coagulant: an agent that produces coagulation
|
cod-liver_oil
|
an oil obtained from the livers of cod and similar fishes; taken orally as a source of vitamins A and D
|
cod-liver_oil: an oil obtained from the livers of cod and similar fishes; taken orally as a source of vitamins A and D
|
cod_oil
|
an inferior cod-liver oil that is used in leather manufacturing
|
cod_oil: an inferior cod-liver oil that is used in leather manufacturing
|
lanolin
|
a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics
|
lanolin: a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics
|
codon
|
a specific sequence of three adjacent nucleotides on a strand of DNA or RNA that specifies the genetic code information for synthesizing a particular amino acid
|
codon: a specific sequence of three adjacent nucleotides on a strand of DNA or RNA that specifies the genetic code information for synthesizing a particular amino acid
|
coin_silver
|
a silver of the degree of purity established for making legal silver coins
|
coin_silver: a silver of the degree of purity established for making legal silver coins
|
combustible
|
a substance that can be burned to provide heat or power
|
combustible: a substance that can be burned to provide heat or power
|
complementary_DNA
|
single-stranded DNA that is complementary to messenger RNA or DNA that has been synthesized from messenger RNA by reverse transcriptase
|
complementary_DNA: single-stranded DNA that is complementary to messenger RNA or DNA that has been synthesized from messenger RNA by reverse transcriptase
|
provirus
|
cDNA copy of the RNA genome of a retrovirus; the genetic material of a virus as incorporated into and able to replicate with the genome of a host cell
|
provirus: cDNA copy of the RNA genome of a retrovirus; the genetic material of a virus as incorporated into and able to replicate with the genome of a host cell
|
dscDNA
|
double-stranded cDNA
|
dscDNA: double-stranded cDNA
|
episome
|
DNA that is not incorporated into the genome but is replicated together with the genome (especially in bacterial cells)
|
episome: DNA that is not incorporated into the genome but is replicated together with the genome (especially in bacterial cells)
|
complex
|
a compound described in terms of the central atom to which other atoms are bound or coordinated
|
complex: a compound described in terms of the central atom to which other atoms are bound or coordinated
|
composite_material
|
strong lightweight material developed in the laboratory; fibers of more than one kind are bonded together chemically
|
composite_material: strong lightweight material developed in the laboratory; fibers of more than one kind are bonded together chemically
|
hydrochloride
|
a complex consisting of an organic base in association with hydrogen chloride
|
hydrochloride: a complex consisting of an organic base in association with hydrogen chloride
|
compost
|
a mixture of decaying vegetation and manure; used as a fertilizer
|
compost: a mixture of decaying vegetation and manure; used as a fertilizer
|
compound
|
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
|
compound: (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
|
allomorph
|
any of several different crystalline forms of the same chemical compound
|
allomorph: any of several different crystalline forms of the same chemical compound
|
computer_paper
|
paper folded to permit continuous printing controlled by a computer
|
computer_paper: paper folded to permit continuous printing controlled by a computer
|
concrete
|
a strong hard building material composed of sand and gravel and cement and water
|
concrete: a strong hard building material composed of sand and gravel and cement and water
|
conjugate_solution
|
a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A
|
conjugate_solution: a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A
|
conima
|
a gum resin from the poison hemlock, Conium maculatum
|
conima: a gum resin from the poison hemlock, Conium maculatum
|
constantan
|
an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire
|
constantan: an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire
|
construction_paper
|
paper suitable for drawing and making cutouts
|
construction_paper: paper suitable for drawing and making cutouts
|
conductor
|
a substance that readily conducts e.g. electricity and heat
|
conductor: a substance that readily conducts e.g. electricity and heat
|
semiconductor
|
a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities
|
semiconductor: a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities
|
insulator
|
a material such as glass or porcelain with negligible electrical or thermal conductivity
|
insulator: a material such as glass or porcelain with negligible electrical or thermal conductivity
|
glass_wool
|
glass fibers spun and massed into bundles resembling wool
|
glass_wool: glass fibers spun and massed into bundles resembling wool
|
contaminant
|
a substance that contaminates
|
contaminant: a substance that contaminates
|
coolant
|
a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another
|
coolant: a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another
|
copper-base_alloy
|
any alloy whose principal component is copper
|
copper-base_alloy: any alloy whose principal component is copper
|
copper_oxide
|
an oxide of copper
|
copper_oxide: an oxide of copper
|
copper_sulfate
|
a copper salt made by the action of sulfuric acid on copper oxide
|
copper_sulfate: a copper salt made by the action of sulfuric acid on copper oxide
|
coral
|
the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry
|
coral: the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry
|
cork
|
outer bark of the cork oak; used for stoppers for bottles etc.
|
cork: outer bark of the cork oak; used for stoppers for bottles etc.
|
corkboard
|
a heat-insulating building material consisting of cork granules that are made into sheets by compressing and baking
|
corkboard: a heat-insulating building material consisting of cork granules that are made into sheets by compressing and baking
|
phellem
|
(botany) outer tissue of bark; a protective layer of dead cells
|
phellem: (botany) outer tissue of bark; a protective layer of dead cells
|
corn_sugar
|
dextrose made by hydrolysis of cornstarch
|
corn_sugar: dextrose made by hydrolysis of cornstarch
|
corrosive
|
a substance having the tendency to cause corrosion (such a strong acids or alkali)
|
corrosive: a substance having the tendency to cause corrosion (such a strong acids or alkali)
|
alumina
|
any of various forms of aluminum oxide occurring naturally as corundum
|
alumina: any of various forms of aluminum oxide occurring naturally as corundum
|
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