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shell
the material that forms the hard outer covering of many animals
shell: the material that forms the hard outer covering of many animals
mother-of-pearl
the iridescent internal layer of a mollusk shell
mother-of-pearl: the iridescent internal layer of a mollusk shell
animal_skin
the outer covering of an animal
animal_skin: the outer covering of an animal
parchment
skin of a sheep or goat prepared for writing on
parchment: skin of a sheep or goat prepared for writing on
vellum
fine parchment prepared from the skin of a young animal e.g. a calf or lamb
vellum: fine parchment prepared from the skin of a young animal e.g. a calf or lamb
hide
the dressed skin of an animal (especially a large animal)
hide: the dressed skin of an animal (especially a large animal)
cowhide
the hide of a cow
cowhide: the hide of a cow
goatskin
the hide of a goat
goatskin: the hide of a goat
rawhide
untanned hide especially of cattle; cut in strips it is used for whips and ropes
rawhide: untanned hide especially of cattle; cut in strips it is used for whips and ropes
leather
an animal skin made smooth and flexible by removing the hair and then tanning
leather: an animal skin made smooth and flexible by removing the hair and then tanning
grain
the side of leather from which the hair has been removed
grain: the side of leather from which the hair has been removed
alligator
leather made from alligator's hide
alligator: leather made from alligator's hide
buckskin
a soft yellowish suede leather originally from deerskin but now usually from sheepskin
buckskin: a soft yellowish suede leather originally from deerskin but now usually from sheepskin
buff
a soft thick undyed leather from the skins of e.g. buffalo or oxen
buff: a soft thick undyed leather from the skins of e.g. buffalo or oxen
ooze_leather
a very soft leather made from the skins of calves and having a suede finish on the flesh side
ooze_leather: a very soft leather made from the skins of calves and having a suede finish on the flesh side
Russia_leather
a smooth leather tanned with willow, birch, or oak, and scented on the flesh side with birch oil
Russia_leather: a smooth leather tanned with willow, birch, or oak, and scented on the flesh side with birch oil
caffeine
a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
caffeine: a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
calf
fine leather from the skin of a calf
calf: fine leather from the skin of a calf
white_leather
a leather that has been treated with alum and/or salt
white_leather: a leather that has been treated with alum and/or salt
cassava
a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics
cassava: a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics
chamois
a soft suede leather formerly from the skin of the chamois antelope but now from sheepskin
chamois: a soft suede leather formerly from the skin of the chamois antelope but now from sheepskin
wash_leather
piece of chamois used for cleaning and polishing
wash_leather: piece of chamois used for cleaning and polishing
cordovan
a fine leather originally made in Cordoba, Spain
cordovan: a fine leather originally made in Cordoba, Spain
cowhide
leather made from the hide of a cow
cowhide: leather made from the hide of a cow
crushed_leather
leather that has had its grain pattern accentuated
crushed_leather: leather that has had its grain pattern accentuated
deerskin
leather from the hide of a deer
deerskin: leather from the hide of a deer
doeskin
soft leather from deerskin or lambskin
doeskin: soft leather from deerskin or lambskin
glove_leather
leather suitable for making gloves
glove_leather: leather suitable for making gloves
horsehide
leather from the hide of a horse
horsehide: leather from the hide of a horse
kid
soft smooth leather from the hide of a young goat
kid: soft smooth leather from the hide of a young goat
mocha
soft suede glove leather from goatskin
mocha: soft suede glove leather from goatskin
morocco
a soft pebble-grained leather made from goatskin; used for shoes and book bindings etc.
morocco: a soft pebble-grained leather made from goatskin; used for shoes and book bindings etc.
Levant
a heavy morocco often used in bookbinding
Levant: a heavy morocco often used in bookbinding
patent_leather
leather with a hard glossy surface
patent_leather: leather with a hard glossy surface
pigskin
leather from the skin of swine
pigskin: leather from the skin of swine
sheepskin
tanned skin of a sheep with the fleece left on; used for clothing
sheepskin: tanned skin of a sheep with the fleece left on; used for clothing
Golden_Fleece
in Greek mythology, a fleece of gold owned by the king of Colchis and guarded in a sacred grove by a dragon; recovered by Jason and the Argonauts
Golden_Fleece: in Greek mythology, a fleece of gold owned by the king of Colchis and guarded in a sacred grove by a dragon; recovered by Jason and the Argonauts
shoe_leather
leather used to make shoes
shoe_leather: leather used to make shoes
suede
leather with a napped surface
suede: leather with a napped surface
fur
the dressed hairy coat of a mammal
fur: the dressed hairy coat of a mammal
astrakhan
the fur of young lambs
astrakhan: the fur of young lambs
bearskin
the pelt of a bear (sometimes used as a rug)
bearskin: the pelt of a bear (sometimes used as a rug)
beaver
the soft brown fur of the beaver
beaver: the soft brown fur of the beaver
chinchilla
the expensive silvery grey fur of the chinchilla
chinchilla: the expensive silvery grey fur of the chinchilla
ermine
the expensive white fur of the ermine
ermine: the expensive white fur of the ermine
fox
the grey or reddish-brown fur of a fox
fox: the grey or reddish-brown fur of a fox
lambskin
the skin of a lamb with the wool still on
lambskin: the skin of a lamb with the wool still on
broadtail
the fur of a very young karakul lamb
broadtail: the fur of a very young karakul lamb
Persian_lamb
the fur of a karakul lamb
Persian_lamb: the fur of a karakul lamb
lapin
the fur of a rabbit
lapin: the fur of a rabbit
leopard
the pelt of a leopard
leopard: the pelt of a leopard
mink
the expensive fur of a mink
mink: the expensive fur of a mink
muskrat
the brown fur of a muskrat
muskrat: the brown fur of a muskrat
hudson_seal
muskrat fur dressed to simulate sealskin
hudson_seal: muskrat fur dressed to simulate sealskin
otter
the fur of an otter
otter: the fur of an otter
raccoon
the fur of the North American racoon
raccoon: the fur of the North American racoon
sable
the expensive dark brown fur of the marten
sable: the expensive dark brown fur of the marten
seal
the pelt or fur (especially the underfur) of a seal
seal: the pelt or fur (especially the underfur) of a seal
squirrel
the fur of a squirrel
squirrel: the fur of a squirrel
anime
any of various resins or oleoresins
anime: any of various resins or oleoresins
antifreeze
a liquid added to the water in a cooling system to lower its freezing point
antifreeze: a liquid added to the water in a cooling system to lower its freezing point
nitric_acid
acid used especially in the production of fertilizers and explosives and rocket fuels
nitric_acid: acid used especially in the production of fertilizers and explosives and rocket fuels
nitrous_acid
an unstable inorganic acid known only in solution and as nitrite salts
nitrous_acid: an unstable inorganic acid known only in solution and as nitrite salts
nitrogen_oxide
any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts
nitrogen_oxide: any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts
nitrogen_dioxide
a highly poisonous brown gas (NO2)
nitrogen_dioxide: a highly poisonous brown gas (NO2)
nitric_oxide
a poisonous red-brown gas (NO)
nitric_oxide: a poisonous red-brown gas (NO)
anhydride
a compound formed from one or more other compounds in a reaction resulting in removal of water
anhydride: a compound formed from one or more other compounds in a reaction resulting in removal of water
aqua_regia
a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
aqua_regia: a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
aquamarine
a transparent variety of beryl that is blue green in color
aquamarine: a transparent variety of beryl that is blue green in color
arginine
a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoa
arginine: a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoa
aromatic_hydrocarbon
a hydrocarbon that contains one or more benzene rings that are characteristic of the benzene series of organic compounds
aromatic_hydrocarbon: a hydrocarbon that contains one or more benzene rings that are characteristic of the benzene series of organic compounds
arsenic
a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
arsenic: a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
artificial_blood
a liquid that can carry large amounts of oxygen and can serve as a temporary substitute for blood
artificial_blood: a liquid that can carry large amounts of oxygen and can serve as a temporary substitute for blood
acetic_anhydride
a compound that is needed in order to refine opium into heroin
acetic_anhydride: a compound that is needed in order to refine opium into heroin
phthalic_anhydride
a white cyclic anhydride
phthalic_anhydride: a white cyclic anhydride
art_paper
a high-quality paper (usually having a filler of china clay)
art_paper: a high-quality paper (usually having a filler of china clay)
asafetida
the brownish gum resin of various plants; has strong taste and odor; formerly used as an antispasmodic
asafetida: the brownish gum resin of various plants; has strong taste and odor; formerly used as an antispasmodic
ash
the residue that remains when something is burned
ash: the residue that remains when something is burned
fly_ash
fine solid particles of ash that are carried into the air when fuel is combusted
fly_ash: fine solid particles of ash that are carried into the air when fuel is combusted
asphalt
mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing
asphalt: mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing
mineral_wool
a light fibrous material used as an insulator
mineral_wool: a light fibrous material used as an insulator
austenite
a solid solution of ferric carbide or carbon in iron; cools to form pearlite or martensite
austenite: a solid solution of ferric carbide or carbon in iron; cools to form pearlite or martensite
austenitic_steel
steel that has enough nickel and chromium or manganese to retain austenite at atmospheric temperatures
austenitic_steel: steel that has enough nickel and chromium or manganese to retain austenite at atmospheric temperatures
axle_grease
a thick heavy grease used to lubricate axles
axle_grease: a thick heavy grease used to lubricate axles
azide
a chemical compound containing the azido group combined with an element or radical
azide: a chemical compound containing the azido group combined with an element or radical
hydrazoite
a salt of hydrazoic acid
hydrazoite: a salt of hydrazoic acid
azo_dye
any dye containing one or more azo groups
azo_dye: any dye containing one or more azo groups
congo_red
a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
congo_red: a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
gentian_violet
a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment
gentian_violet: a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment
thiazine
a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom
thiazine: a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom
methylene_blue
a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
methylene_blue: a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
methyl_orange
an azo dye used as an acid-base indicator; used for titrations involving weak bases
methyl_orange: an azo dye used as an acid-base indicator; used for titrations involving weak bases
phenothiazine
a compound used primarily in veterinary medicine to rid farm animals of internal parasites
phenothiazine: a compound used primarily in veterinary medicine to rid farm animals of internal parasites
diazonium
the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes
diazonium: the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes
Babbitt_metal
an alloy of tin with some copper and antimony; a lining for bearings that reduces friction
Babbitt_metal: an alloy of tin with some copper and antimony; a lining for bearings that reduces friction
bactericide
any chemical agent that destroys bacteria
bactericide: any chemical agent that destroys bacteria
bagasse
the dry dusty pulp that remains after juice is extracted from sugar cane or similar plants
bagasse: the dry dusty pulp that remains after juice is extracted from sugar cane or similar plants
baking_powder
any of various powdered mixtures used in baking as a substitute for yeast
baking_powder: any of various powdered mixtures used in baking as a substitute for yeast
banana_oil
a liquid ester derived from amyl alcohol; has the odor of bananas
banana_oil: a liquid ester derived from amyl alcohol; has the odor of bananas
barbituric_acid
a white crystalline acid derived from pyrimidine; used in preparing barbiturate drugs
barbituric_acid: a white crystalline acid derived from pyrimidine; used in preparing barbiturate drugs