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grit
a hard coarse-grained siliceous sandstone
grit: a hard coarse-grained siliceous sandstone
animal_product
a product made from animal material
animal_product: a product made from animal material
ambergris
waxy substance secreted by the sperm whale and found floating at sea or washed ashore; used in perfume
ambergris: waxy substance secreted by the sperm whale and found floating at sea or washed ashore; used in perfume
lac
resinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
lac: resinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
garnet_lac
lac refined by treating with solvent; garnet-colored
garnet_lac: lac refined by treating with solvent; garnet-colored
gum-lac
an inferior lac produced by lac insects in Madagascar
gum-lac: an inferior lac produced by lac insects in Madagascar
shellac
lac purified by heating and filtering; usually in thin orange or yellow flakes but sometimes bleached white
shellac: lac purified by heating and filtering; usually in thin orange or yellow flakes but sometimes bleached white
mosaic_gold
a yellow pigment sometimes suspended in lacquer
mosaic_gold: a yellow pigment sometimes suspended in lacquer
stick_lac
lac in its natural state as scraped off twigs and dried
stick_lac: lac in its natural state as scraped off twigs and dried
seed_lac
granular material obtained from stick lac by crushing and washing
seed_lac: granular material obtained from stick lac by crushing and washing
Sonora_lac
resembling lac; secreted by a scale living on twigs of certain Mexican shrubs; used locally as medicine
Sonora_lac: resembling lac; secreted by a scale living on twigs of certain Mexican shrubs; used locally as medicine
adhesive_material
a substance that unites or bonds surfaces together
adhesive_material: a substance that unites or bonds surfaces together
birdlime
a sticky adhesive that is smeared on small branches to capture small birds
birdlime: a sticky adhesive that is smeared on small branches to capture small birds
glue
cement consisting of a sticky substance that is used as an adhesive
glue: cement consisting of a sticky substance that is used as an adhesive
animal_glue
a protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses
animal_glue: a protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses
casein_glue
made from casein; used for e.g. plywood and cabinetwork
casein_glue: made from casein; used for e.g. plywood and cabinetwork
Crazy_Glue
a commercial brand of epoxy glue
Crazy_Glue: a commercial brand of epoxy glue
fish_glue
gelatinous substance obtained by boiling skins fins and bones of fish
fish_glue: gelatinous substance obtained by boiling skins fins and bones of fish
marine_glue
glue that is not water soluble
marine_glue: glue that is not water soluble
putty
a dough-like mixture of whiting and boiled linseed oil; used especially to patch woodwork or secure panes of glass
putty: a dough-like mixture of whiting and boiled linseed oil; used especially to patch woodwork or secure panes of glass
iron_putty
a cement resembling putty; made by mixing ferric oxide and boiled linseed oil; is acid resistant
iron_putty: a cement resembling putty; made by mixing ferric oxide and boiled linseed oil; is acid resistant
red-lead_putty
a cement resembling putty; made by mixing white and red lead in boiled linseed oil; used as luting on pipe fittings
red-lead_putty: a cement resembling putty; made by mixing white and red lead in boiled linseed oil; used as luting on pipe fittings
spirit_gum
an adhesive solution made of gum and ether and used to attach false hair to skin
spirit_gum: an adhesive solution made of gum and ether and used to attach false hair to skin
binder
something used to bind separate particles together or facilitate adhesion to a surface
binder: something used to bind separate particles together or facilitate adhesion to a surface
cement
something that hardens to act as adhesive material
cement: something that hardens to act as adhesive material
mastic
a pasty cement used as an adhesive or filler
mastic: a pasty cement used as an adhesive or filler
paste
an adhesive made from water and flour or starch; used on paper and paperboard
paste: an adhesive made from water and flour or starch; used on paper and paperboard
wafer
a small adhesive disk of paste; used to seal letters
wafer: a small adhesive disk of paste; used to seal letters
paste
any mixture of a soft and malleable consistency
paste: any mixture of a soft and malleable consistency
rubber_cement
an adhesive made by dissolving unvulcanized rubber in a solvent like benzene or naphtha
rubber_cement: an adhesive made by dissolving unvulcanized rubber in a solvent like benzene or naphtha
sealing_material
any substance used to seal joints or fill cracks in a porous surface
sealing_material: any substance used to seal joints or fill cracks in a porous surface
sealant
a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
sealant: a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
filler
used for filling cracks or holes in a surface
filler: used for filling cracks or holes in a surface
lute
a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid
lute: a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid
size
any glutinous material used to fill pores in surfaces or to stiffen fabrics
size: any glutinous material used to fill pores in surfaces or to stiffen fabrics
purine
a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
purine: a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
purine
any of several bases that are derivatives of purine
purine: any of several bases that are derivatives of purine
adenine
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
adenine: (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
adenosine
(biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP
adenosine: (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP
adenosine_deaminase
an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia
adenosine_deaminase: an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia
adenosine_monophosphate
a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
adenosine_monophosphate: a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
adenosine_diphosphate
an ester of adenosine that is converted to ATP for energy storage
adenosine_diphosphate: an ester of adenosine that is converted to ATP for energy storage
adenosine_triphosphate
a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
adenosine_triphosphate: a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
agate
an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles
agate: an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles
moss_agate
an agate resembling moss with brown, black, or green markings
moss_agate: an agate resembling moss with brown, black, or green markings
Alar
a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time
Alar: a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time
alcohol
any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation
alcohol: any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation
ether
any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
ether: any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
ethyl_alcohol
the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline
ethyl_alcohol: the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline
spirits_of_wine
rectified ethyl alcohol
spirits_of_wine: rectified ethyl alcohol
absolute_alcohol
pure ethyl alcohol (containing no more than 1% water)
absolute_alcohol: pure ethyl alcohol (containing no more than 1% water)
isopropyl_alcohol
alcohol used as antifreeze or a solvent
isopropyl_alcohol: alcohol used as antifreeze or a solvent
denaturant
any substance that serves as a denaturing agent
denaturant: any substance that serves as a denaturing agent
denatured_alcohol
ethyl alcohol that is unfit for drinking but is still useful for other purposes
denatured_alcohol: ethyl alcohol that is unfit for drinking but is still useful for other purposes
ethyl
the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
ethyl: the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
aldohexose
a monosaccharide sugar having six carbon atoms and an aldehyde group
aldohexose: a monosaccharide sugar having six carbon atoms and an aldehyde group
aldose
a monosaccharide sugar that contains the aldehyde group or is hemiacetal
aldose: a monosaccharide sugar that contains the aldehyde group or is hemiacetal
acetal
any organic compound formed by adding alcohol molecules to aldehyde molecules
acetal: any organic compound formed by adding alcohol molecules to aldehyde molecules
acetaldol
unsaturated aldol
acetaldol: unsaturated aldol
acetaldehyde
a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs
acetaldehyde: a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs
acetamide
a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds
acetamide: a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds
acrylamide
a white crystalline amide of propenoic acid can damage the nervous system and is carcinogenic in laboratory animals
acrylamide: a white crystalline amide of propenoic acid can damage the nervous system and is carcinogenic in laboratory animals
agglomerate
volcanic rock consisting of large fragments fused together
agglomerate: volcanic rock consisting of large fragments fused together
aldol
an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde; contains an alcohol group (-OH) and an aldehyde group (-CHO)
aldol: an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde; contains an alcohol group (-OH) and an aldehyde group (-CHO)
alkali
a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
alkali: a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
alkali_metal
any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)
alkali_metal: any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)
alkaline_earth
any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
alkaline_earth: any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
alkaloid
natural bases containing nitrogen found in plants
alkaloid: natural bases containing nitrogen found in plants
alkene
any unsaturated aliphatic hydrocarbon
alkene: any unsaturated aliphatic hydrocarbon
alkylbenzenesulfonate
sulfonate of alkyl benzene
alkylbenzenesulfonate: sulfonate of alkyl benzene
cinchonine
an alkaloid derivative of the bark of cinchona trees that is used as an antimalarial drug
cinchonine: an alkaloid derivative of the bark of cinchona trees that is used as an antimalarial drug
ephedrine
white odorless powdered or crystalline alkaloid from plants of the genus Ephedra (especially Ephedra sinica) or made synthetically; used as a bronchodilator to treat bronchitis and asthma
ephedrine: white odorless powdered or crystalline alkaloid from plants of the genus Ephedra (especially Ephedra sinica) or made synthetically; used as a bronchodilator to treat bronchitis and asthma
ergonovine
an alkaloid derived from ergot (trade name Ergotrate Maleate) that is less toxic than ergot; induces muscular contraction of the uterus and is administered after childbirth or abortion
ergonovine: an alkaloid derived from ergot (trade name Ergotrate Maleate) that is less toxic than ergot; induces muscular contraction of the uterus and is administered after childbirth or abortion
ergotamine
an alkaloid derived from ergot that is less toxic than ergot; causes constriction of blood vessels and is used to treat migraine
ergotamine: an alkaloid derived from ergot that is less toxic than ergot; causes constriction of blood vessels and is used to treat migraine
pseudoephedrine
poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it
pseudoephedrine: poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it
epsilon_toxin
a bacterial toxin produced by clostridium perfringens; causes intense abdominal cramps and diarrhea that begins 8-22 hours after consumption of foods containing large numbers of these bacteria
epsilon_toxin: a bacterial toxin produced by clostridium perfringens; causes intense abdominal cramps and diarrhea that begins 8-22 hours after consumption of foods containing large numbers of these bacteria
aflatoxin
a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon
aflatoxin: a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon
nicotine
an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide
nicotine: an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide
strychnine
an alkaloid plant toxin extracted chiefly from nux vomica; formerly used as a stimulant
strychnine: an alkaloid plant toxin extracted chiefly from nux vomica; formerly used as a stimulant
brucine
a bitter alkaloid poison resembling strychnine and extracted from nux vomica
brucine: a bitter alkaloid poison resembling strychnine and extracted from nux vomica
shag
a strong coarse tobacco that has been shredded
shag: a strong coarse tobacco that has been shredded
Turkish_tobacco
a dark aromatic tobacco of eastern Europe that is used in cigarettes
Turkish_tobacco: a dark aromatic tobacco of eastern Europe that is used in cigarettes
latakia
aromatic Turkish tobacco
latakia: aromatic Turkish tobacco
alexandrite
a green variety of chrysoberyl used as a gemstone
alexandrite: a green variety of chrysoberyl used as a gemstone
alloy_iron
cast iron containing alloying elements (usually nickel or chromium or copper or molybdenum) to increase the strength or facilitate heat treatment
alloy_iron: cast iron containing alloying elements (usually nickel or chromium or copper or molybdenum) to increase the strength or facilitate heat treatment
alloy_steel
steel who characteristics are determined by the addition of other elements in addition to carbon
alloy_steel: steel who characteristics are determined by the addition of other elements in addition to carbon
Alnico
trade name for an alloy used to make high-energy permanent magnets; contains aluminum and iron and nickel plus cobalt or copper or titanium
Alnico: trade name for an alloy used to make high-energy permanent magnets; contains aluminum and iron and nickel plus cobalt or copper or titanium
amalgam
an alloy of mercury with another metal (usually silver) used by dentists to fill cavities in teeth; except for iron and platinum all metals dissolve in mercury and chemists refer to the resulting mercury mixtures as amalgams
amalgam: an alloy of mercury with another metal (usually silver) used by dentists to fill cavities in teeth; except for iron and platinum all metals dissolve in mercury and chemists refer to the resulting mercury mixtures as amalgams
fusible_metal
an alloy with a low melting point and used as solder and in safety plugs and sprinkler fuses
fusible_metal: an alloy with a low melting point and used as solder and in safety plugs and sprinkler fuses
brass
an alloy of copper and zinc
brass: an alloy of copper and zinc
bronze
an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin
bronze: an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin
gunmetal
a type of bronze used for parts subject to wear or corrosion (especially corrosion by sea water)
gunmetal: a type of bronze used for parts subject to wear or corrosion (especially corrosion by sea water)
phosphor_bronze
a corrosion-resistant bronze containing phosphorus; used in bearings and gears
phosphor_bronze: a corrosion-resistant bronze containing phosphorus; used in bearings and gears
cupronickel
a 60/40 alloy of copper and nickel
cupronickel: a 60/40 alloy of copper and nickel
electrum
an alloy of gold and silver
electrum: an alloy of gold and silver
pewter
any of various alloys of tin with small amounts of other metals (especially lead)
pewter: any of various alloys of tin with small amounts of other metals (especially lead)
pinchbeck
an alloy of copper and zinc that is used in cheap jewelry to imitate gold
pinchbeck: an alloy of copper and zinc that is used in cheap jewelry to imitate gold
pot_metal
an alloy of copper and lead used especially for making large pots
pot_metal: an alloy of copper and lead used especially for making large pots
hard_solder
solder that contains copper; melts at a relatively high temperature; used for brazing
hard_solder: solder that contains copper; melts at a relatively high temperature; used for brazing
silver_solder
a solder that contains silver
silver_solder: a solder that contains silver