noun
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sandstone
|
a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)
|
sandstone: a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)
|
bluestone
|
bluish-grey sandstone used for paving and building
|
bluestone: bluish-grey sandstone used for paving and building
|
greensand
|
an olive-green sandstone containing glauconite
|
greensand: an olive-green sandstone containing glauconite
|
polish
|
a preparation used in polishing
|
polish: a preparation used in polishing
|
polypropylene
|
a polymer of propylene used as a thermoplastic molding material
|
polypropylene: a polymer of propylene used as a thermoplastic molding material
|
polyvinyl-formaldehyde
|
a polymer of vinyl formaldehyde
|
polyvinyl-formaldehyde: a polymer of vinyl formaldehyde
|
porphyry
|
any igneous rock with crystals embedded in a finer groundmass of minerals
|
porphyry: any igneous rock with crystals embedded in a finer groundmass of minerals
|
porpoise_oil
|
a yellow fatty oil obtained from porpoises and used as a fine lubricant
|
porpoise_oil: a yellow fatty oil obtained from porpoises and used as a fine lubricant
|
dolphin_oil
|
an unsaturated fatty oil obtained from dolphins and used as a fine lubricant
|
dolphin_oil: an unsaturated fatty oil obtained from dolphins and used as a fine lubricant
|
potash
|
a potassium compound often used in agriculture and industry
|
potash: a potassium compound often used in agriculture and industry
|
powder
|
a solid substance in the form of tiny loose particles; a solid that has been pulverized
|
powder: a solid substance in the form of tiny loose particles; a solid that has been pulverized
|
prairie_soil
|
a type of soil occurring under grasses in temperate climates
|
prairie_soil: a type of soil occurring under grasses in temperate climates
|
precipitant
|
an agent that causes a precipitate to form
|
precipitant: an agent that causes a precipitate to form
|
preservative
|
a chemical compound that is added to protect against decay or decomposition
|
preservative: a chemical compound that is added to protect against decay or decomposition
|
product
|
a chemical substance formed as a result of a chemical reaction
|
product: a chemical substance formed as a result of a chemical reaction
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percolate
|
the product of percolation
|
percolate: the product of percolation
|
propanal
|
a colorless liquid aldehyde
|
propanal: a colorless liquid aldehyde
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propanol
|
a clear colorless volatile liquid (alcohol) used as a solvent and antiseptic
|
propanol: a clear colorless volatile liquid (alcohol) used as a solvent and antiseptic
|
propenal
|
a pungent colorless unsaturated liquid aldehyde made from propene
|
propenal: a pungent colorless unsaturated liquid aldehyde made from propene
|
propenoate
|
a salt or ester of propenoic acid
|
propenoate: a salt or ester of propenoic acid
|
propenoic_acid
|
an unsaturated liquid carboxylic acid used in the manufacture of acrylic resins
|
propenoic_acid: an unsaturated liquid carboxylic acid used in the manufacture of acrylic resins
|
propenonitrile
|
a colorless liquid unsaturated nitrile made from propene
|
propenonitrile: a colorless liquid unsaturated nitrile made from propene
|
propylene
|
a flammable gas obtained by cracking petroleum; used in organic synthesis
|
propylene: a flammable gas obtained by cracking petroleum; used in organic synthesis
|
propyl
|
the monovalent organic group C3H7- obtained from propane
|
propyl: the monovalent organic group C3H7- obtained from propane
|
protease
|
any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
|
protease: any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
|
ptomaine
|
any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
|
ptomaine: any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
|
Pyrex
|
a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry
|
Pyrex: a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry
|
pyrimidine
|
a heterocyclic organic compound with a penetrating odor
|
pyrimidine: a heterocyclic organic compound with a penetrating odor
|
pyrimidine
|
any of several basic compounds derived from pyrimidine
|
pyrimidine: any of several basic compounds derived from pyrimidine
|
pyrope
|
a deep red garnet used as a gemstone
|
pyrope: a deep red garnet used as a gemstone
|
pyrophoric_alloy
|
an alloy that emits sparks when struck or scratched with steel; used in lighter flints
|
pyrophoric_alloy: an alloy that emits sparks when struck or scratched with steel; used in lighter flints
|
pyruvic_acid
|
a colorless acid formed as an important intermediate in metabolism or fermentation
|
pyruvic_acid: a colorless acid formed as an important intermediate in metabolism or fermentation
|
quassia
|
a bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood and bark of trees of the genera Quassia and Picrasma
|
quassia: a bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood and bark of trees of the genera Quassia and Picrasma
|
quenched_steel
|
steel that has been hardened by immersing it in water or oil to cool it
|
quenched_steel: steel that has been hardened by immersing it in water or oil to cool it
|
quercitron
|
a yellow dye made from the bark of the quercitron oak tree
|
quercitron: a yellow dye made from the bark of the quercitron oak tree
|
quinone
|
any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
|
quinone: any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
|
radiopaque_dye
|
dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination
|
radiopaque_dye: dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination
|
rhodolite
|
a red or pink variety of garnet used as a gemstone
|
rhodolite: a red or pink variety of garnet used as a gemstone
|
safranine
|
any of a class of chiefly red organic dyes
|
safranine: any of a class of chiefly red organic dyes
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pheno-safranine
|
a purplish red water-soluble dye used in microscopy
|
pheno-safranine: a purplish red water-soluble dye used in microscopy
|
Tyrian_purple
|
a red-purple to deep purple dye obtained from snails or made synthetically
|
Tyrian_purple: a red-purple to deep purple dye obtained from snails or made synthetically
|
vat_dye
|
a water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton
|
vat_dye: a water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton
|
woad
|
a blue dyestuff obtained from the woad plant
|
woad: a blue dyestuff obtained from the woad plant
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radioactive_material
|
material that is radioactive
|
radioactive_material: material that is radioactive
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radioactive_waste
|
useless radioactive materials that are left after some laboratory or commercial process is completed
|
radioactive_waste: useless radioactive materials that are left after some laboratory or commercial process is completed
|
raffia
|
leaf fibers of the raffia palm tree; used to make baskets and mats etc.
|
raffia: leaf fibers of the raffia palm tree; used to make baskets and mats etc.
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raffinose
|
a trisaccharide that occurs in sugar beets and cotton seeds and certain cereals
|
raffinose: a trisaccharide that occurs in sugar beets and cotton seeds and certain cereals
|
rauwolfia
|
any of several alkaloids extracted from the shrub Rauwolfia serpentina
|
rauwolfia: any of several alkaloids extracted from the shrub Rauwolfia serpentina
|
raveling
|
a bit of fiber that has become separated from woven fabric
|
raveling: a bit of fiber that has become separated from woven fabric
|
red_brass
|
brass with enough copper to give it a reddish tint; used for plumbing pipe and other brass hardware and in cheap jewelry
|
red_brass: brass with enough copper to give it a reddish tint; used for plumbing pipe and other brass hardware and in cheap jewelry
|
red_lead
|
a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
|
red_lead: a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
|
red_tide
|
seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin
|
red_tide: seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin
|
reductase
|
an enzyme that catalyses the biochemical reduction of some specified substance
|
reductase: an enzyme that catalyses the biochemical reduction of some specified substance
|
refrigerant
|
any substance used to provide cooling (as in a refrigerator)
|
refrigerant: any substance used to provide cooling (as in a refrigerator)
|
remover
|
a solvent that removes a substance (usually from a surface)
|
remover: a solvent that removes a substance (usually from a surface)
|
renin
|
a proteolytic enzyme secreted by the kidneys; catalyzes the formation of angiotensin and thus affects blood pressure
|
renin: a proteolytic enzyme secreted by the kidneys; catalyzes the formation of angiotensin and thus affects blood pressure
|
rennin
|
an enzyme that occurs in gastric juice; causes milk to coagulate
|
rennin: an enzyme that occurs in gastric juice; causes milk to coagulate
|
residue
|
matter that remains after something has been removed
|
residue: matter that remains after something has been removed
|
resorcinol
|
a crystalline phenol obtained from various resins; used in ointments for acne and in dandruff shampoos
|
resorcinol: a crystalline phenol obtained from various resins; used in ointments for acne and in dandruff shampoos
|
restrainer
|
a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film
|
restrainer: a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film
|
restriction_endonuclease
|
any of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragments; obtained from bacteria (where they cripple viral invaders); used in recombinant DNA technology
|
restriction_endonuclease: any of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragments; obtained from bacteria (where they cripple viral invaders); used in recombinant DNA technology
|
retinene
|
either of two yellow to red retinal pigments formed from rhodopsin by the action of light
|
retinene: either of two yellow to red retinal pigments formed from rhodopsin by the action of light
|
ridge_tile
|
a decorative tile that is bent in cross section; used to cover the ridge of a roof
|
ridge_tile: a decorative tile that is bent in cross section; used to cover the ridge of a roof
|
roofing_material
|
building material used in constructing roofs
|
roofing_material: building material used in constructing roofs
|
rose_quartz
|
a translucent rose-red variety of quartz used for ornaments
|
rose_quartz: a translucent rose-red variety of quartz used for ornaments
|
roughcast
|
a coarse plaster for the surface of external walls
|
roughcast: a coarse plaster for the surface of external walls
|
latex
|
a milky exudate from certain plants that coagulates on exposure to air
|
latex: a milky exudate from certain plants that coagulates on exposure to air
|
rubber
|
an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
|
rubber: an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
|
crepe_rubber
|
crude natural rubber; used mainly for shoe soles
|
crepe_rubber: crude natural rubber; used mainly for shoe soles
|
rubber
|
any of various synthetic elastic materials whose properties resemble natural rubber
|
rubber: any of various synthetic elastic materials whose properties resemble natural rubber
|
silicone_rubber
|
made from silicone elastomers; retains flexibility resilience and tensile strength over a wide temperature range
|
silicone_rubber: made from silicone elastomers; retains flexibility resilience and tensile strength over a wide temperature range
|
cold_rubber
|
a rubber made at low temperatures (5 degrees Centigrade) which is tougher than conventional rubber and is often used in car tires
|
cold_rubber: a rubber made at low temperatures (5 degrees Centigrade) which is tougher than conventional rubber and is often used in car tires
|
neoprene
|
a synthetic rubber that is resistant to oils and aging; used in waterproof products
|
neoprene: a synthetic rubber that is resistant to oils and aging; used in waterproof products
|
hard_rubber
|
a hard nonresilient rubber formed by vulcanizing natural rubber
|
hard_rubber: a hard nonresilient rubber formed by vulcanizing natural rubber
|
Para_rubber
|
a type of natural rubber obtained from tropical South American trees
|
Para_rubber: a type of natural rubber obtained from tropical South American trees
|
buna
|
made by polymerizing butadiene
|
buna: made by polymerizing butadiene
|
butyl_rubber
|
synthetic rubber made by polymerizing isobutylene
|
butyl_rubber: synthetic rubber made by polymerizing isobutylene
|
butyl
|
a hydrocarbon radical (C4H9)
|
butyl: a hydrocarbon radical (C4H9)
|
ruby
|
a transparent deep red variety of corundum; used as a gemstone and in lasers
|
ruby: a transparent deep red variety of corundum; used as a gemstone and in lasers
|
ruddle
|
a red iron ore used in dyeing and marking
|
ruddle: a red iron ore used in dyeing and marking
|
rutile
|
a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium
|
rutile: a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium
|
rain
|
drops of fresh water that fall as precipitation from clouds
|
rain: drops of fresh water that fall as precipitation from clouds
|
condensate
|
a product of condensation
|
condensate: a product of condensation
|
seawater
|
water containing salts
|
seawater: water containing salts
|
evaporite
|
the sediment that is left after the evaporation of seawater
|
evaporite: the sediment that is left after the evaporation of seawater
|
fresh_water
|
water that is not salty
|
fresh_water: water that is not salty
|
Rochelle_salt
|
a double salt used in Seidlitz powder; acts as a cathartic
|
Rochelle_salt: a double salt used in Seidlitz powder; acts as a cathartic
|
Seidlitz_powder
|
an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic
|
Seidlitz_powder: an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic
|
salicylate
|
a salt of salicylic acid (included in several commonly used drugs)
|
salicylate: a salt of salicylic acid (included in several commonly used drugs)
|
salicylic_acid
|
a white crystalline substance with a bitter aftertaste; used as a fungicide or in making aspirin or dyes or perfumes
|
salicylic_acid: a white crystalline substance with a bitter aftertaste; used as a fungicide or in making aspirin or dyes or perfumes
|
salmon_oil
|
a fatty oil obtained from the wastes in canning salmon; used in making soap and dressing leather
|
salmon_oil: a fatty oil obtained from the wastes in canning salmon; used in making soap and dressing leather
|
salol
|
a white powder with a pleasant taste and odor; used to absorb light in sun tan lotions or as a preservative or an antiseptic or a coating for pills in which the medicine is intended for enteric release
|
salol: a white powder with a pleasant taste and odor; used to absorb light in sun tan lotions or as a preservative or an antiseptic or a coating for pills in which the medicine is intended for enteric release
|
salt
|
a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
|
salt: a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
|
double_salt
|
a solution of two simple salts that forms a single substance on crystallization
|
double_salt: a solution of two simple salts that forms a single substance on crystallization
|
parathion
|
a colorless and odorless toxic oil used as an insecticide
|
parathion: a colorless and odorless toxic oil used as an insecticide
|
Paris_green
|
a toxic double salt of copper arsenate and copper acetate
|
Paris_green: a toxic double salt of copper arsenate and copper acetate
|
rotenone
|
a white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube
|
rotenone: a white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube
|
samarskite
|
a complex black mineral occurring in pegmatites
|
samarskite: a complex black mineral occurring in pegmatites
|
sapphirine
|
a rare light blue or green mineral; consists of aluminum and magnesium silicate and occurs as small grains in some metamorphic rocks
|
sapphirine: a rare light blue or green mineral; consists of aluminum and magnesium silicate and occurs as small grains in some metamorphic rocks
|
bile_salt
|
a salt of bile acid and a base; functions as an emulsifier of lipids and fatty acids
|
bile_salt: a salt of bile acid and a base; functions as an emulsifier of lipids and fatty acids
|
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