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barium_sulphate
a white insoluble radiopaque powder used as a pigment
barium_sulphate: a white insoluble radiopaque powder used as a pigment
basalt
the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene
basalt: the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene
basic_dye
a dye that is considered to be a base because the chromophore is part of a positive ion
basic_dye: a dye that is considered to be a base because the chromophore is part of a positive ion
basic_iron
pig iron containing a high percentage of phosphorus; used in making steel by a process that removes the phosphorus
basic_iron: pig iron containing a high percentage of phosphorus; used in making steel by a process that removes the phosphorus
basic_slag
slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer
basic_slag: slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer
bath_water
water used for a bath
bath_water: water used for a bath
battery_acid
dilute sulfuric acid used in storage batteries
battery_acid: dilute sulfuric acid used in storage batteries
bearing_brass
a brass bushing or a lining for a bearing
bearing_brass: a brass bushing or a lining for a bearing
beebread
a mixture of nectar and pollen prepared by worker bees and fed to larvae
beebread: a mixture of nectar and pollen prepared by worker bees and fed to larvae
royal_jelly
a secretion of the pharyngeal glands of bees that is fed to very young larvae and to bees destined to be queens
royal_jelly: a secretion of the pharyngeal glands of bees that is fed to very young larvae and to bees destined to be queens
beef_tallow
tallow obtained from a bovine animal
beef_tallow: tallow obtained from a bovine animal
beet_sugar
sugar made from sugar beets
beet_sugar: sugar made from sugar beets
bell_metal
bronze with 3 or 4 parts copper to 1 part tin; used in making bells
bell_metal: bronze with 3 or 4 parts copper to 1 part tin; used in making bells
benzene
a colorless liquid hydrocarbon; highly inflammable; carcinogenic; the simplest of the aromatic compounds
benzene: a colorless liquid hydrocarbon; highly inflammable; carcinogenic; the simplest of the aromatic compounds
benzene_formula
a closed chain of 6 carbon atoms with hydrogen atoms attached
benzene_formula: a closed chain of 6 carbon atoms with hydrogen atoms attached
benzoate
any salt or ester of benzoic acid
benzoate: any salt or ester of benzoic acid
benzoate_of_soda
a white crystalline salt used as a food preservative and antiseptic
benzoate_of_soda: a white crystalline salt used as a food preservative and antiseptic
benzoic_acid
a white crystalline solid occurring in many resins
benzoic_acid: a white crystalline solid occurring in many resins
benzoyl_peroxide
a white crystalline peroxide used in bleaching (flour or oils or fats) and as a catalyst for free radical reactions
benzoyl_peroxide: a white crystalline peroxide used in bleaching (flour or oils or fats) and as a catalyst for free radical reactions
beryllium_bronze
a copper-base alloy containing beryllium
beryllium_bronze: a copper-base alloy containing beryllium
bicarbonate
a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate
bicarbonate: a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate
bicarbonate_of_soda
a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid
bicarbonate_of_soda: a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid
bimetal
material made by bonding together sheets of two different metals
bimetal: material made by bonding together sheets of two different metals
binder's_board
a cardboard used by bookbinders to make covers for books
binder's_board: a cardboard used by bookbinders to make covers for books
bitter_principle
any one of several hundred compounds having a bitter taste; not admitting of chemical classification
bitter_principle: any one of several hundred compounds having a bitter taste; not admitting of chemical classification
black_opal
a dark colored opal with internal reflections of green or red
black_opal: a dark colored opal with internal reflections of green or red
active_agent
chemical agent capable of activity
active_agent: chemical agent capable of activity
Alka-seltzer
a commercial antacid that contains aspirin; tablets dissolve in water to give an effervescent solution
Alka-seltzer: a commercial antacid that contains aspirin; tablets dissolve in water to give an effervescent solution
Brioschi
an antacid
Brioschi: an antacid
Bromo-seltzer
an antacid
Bromo-seltzer: an antacid
lansoprazole
antacid (trade name Prevacid) that suppresses acid secretion in the stomach
lansoprazole: antacid (trade name Prevacid) that suppresses acid secretion in the stomach
Maalox
an antacid
Maalox: an antacid
Mylanta
an antacid
Mylanta: an antacid
omeprazole
antacid (trade name Prilosec) that suppresses acid secretion in the stomach
omeprazole: antacid (trade name Prilosec) that suppresses acid secretion in the stomach
Pepto-bismal
an antacid
Pepto-bismal: an antacid
Rolaids
an antacid
Rolaids: an antacid
Tums
an antacid
Tums: an antacid
antacid
an agent that counteracts or neutralizes acidity (especially in the stomach)
antacid: an agent that counteracts or neutralizes acidity (especially in the stomach)
agent
a substance that exerts some force or effect
agent: a substance that exerts some force or effect
reagent
a chemical agent for use in chemical reactions
reagent: a chemical agent for use in chemical reactions
bacteriostat
a chemical or biological material that inhibits bacterial growth
bacteriostat: a chemical or biological material that inhibits bacterial growth
bleaching_agent
an agent that makes things white or colorless
bleaching_agent: an agent that makes things white or colorless
chemical_agent
an agent that produces chemical reactions
chemical_agent: an agent that produces chemical reactions
desiccant
a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture)
desiccant: a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture)
oxidant
a substance that oxidizes another substance
oxidant: a substance that oxidizes another substance
reducing_agent
a substance capable of bringing about the reduction of another substance as it itself is oxidized; used in photography to lessen the density of a negative or print by oxidizing some of the loose silver
reducing_agent: a substance capable of bringing about the reduction of another substance as it itself is oxidized; used in photography to lessen the density of a negative or print by oxidizing some of the loose silver
bleaching_clay
an adsorbent clay that will remove coloring from oils
bleaching_clay: an adsorbent clay that will remove coloring from oils
mud_pie
a mass of mud that a child has molded into the shape of pie
mud_pie: a mass of mud that a child has molded into the shape of pie
bleaching_powder
a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect
bleaching_powder: a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect
bleach_liquor
a solution containing bleaching agents that is used to bleach textiles or paper pulp
bleach_liquor: a solution containing bleaching agents that is used to bleach textiles or paper pulp
hydrogen_peroxide
a viscous liquid with strong oxidizing properties; a powerful bleaching agent; also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels
hydrogen_peroxide: a viscous liquid with strong oxidizing properties; a powerful bleaching agent; also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels
blister_copper
an impure form of copper having a black blistered surface
blister_copper: an impure form of copper having a black blistered surface
bloodstone
green chalcedony with red spots that resemble blood
bloodstone: green chalcedony with red spots that resemble blood
blotting_paper
absorbent paper used to dry ink
blotting_paper: absorbent paper used to dry ink
blow_gas
the gas leaving a generator during a blow period
blow_gas: the gas leaving a generator during a blow period
blubber
an insulating layer of fat under the skin of whales and other large marine mammals; used as a source of oil
blubber: an insulating layer of fat under the skin of whales and other large marine mammals; used as a source of oil
blueprint_paper
sensitized paper used to make blueprints
blueprint_paper: sensitized paper used to make blueprints
blue_vitriol
hydrated blue crystalline form of copper sulfate
blue_vitriol: hydrated blue crystalline form of copper sulfate
bog_soil
poorly drained soils on top of peat and under marsh or swamp vegetation
bog_soil: poorly drained soils on top of peat and under marsh or swamp vegetation
bond
a superior quality of strong durable white writing paper; originally made for printing documents
bond: a superior quality of strong durable white writing paper; originally made for printing documents
bone_ash
ash left when bones burn; high in calcium phosphate; used as fertilizer and in bone china
bone_ash: ash left when bones burn; high in calcium phosphate; used as fertilizer and in bone china
bonemeal
fertilizer made of ground bones
bonemeal: fertilizer made of ground bones
neem_cake
residue after oil is pressed from neem seeds
neem_cake: residue after oil is pressed from neem seeds
bone_fat
fatty matter in bones extracted with solvents or by boiling or steaming; used chiefly in candles and cheap soaps and in lubricating greases
bone_fat: fatty matter in bones extracted with solvents or by boiling or steaming; used chiefly in candles and cheap soaps and in lubricating greases
bone_oil
dark-colored ill-smelling oil obtained by carbonizing bone; used especially in sheep dips and in denaturing alcohol
bone_oil: dark-colored ill-smelling oil obtained by carbonizing bone; used especially in sheep dips and in denaturing alcohol
bone_oil
the liquid portion of bone fat; used as a lubricant and in leather manufacture
bone_oil: the liquid portion of bone fat; used as a lubricant and in leather manufacture
borate
a salt or ester of boric acid
borate: a salt or ester of boric acid
boric_acid
any of various acids containing boron and oxygen
boric_acid: any of various acids containing boron and oxygen
boric_acid
a white or colorless slightly acid solid that is soluble in water and ethanol; used in the manufacture of glass and paper and adhesives and in detergents and as a flux in welding; also used as an antiseptic and food preservative
boric_acid: a white or colorless slightly acid solid that is soluble in water and ethanol; used in the manufacture of glass and paper and adhesives and in detergents and as a flux in welding; also used as an antiseptic and food preservative
boron_trifluoride
a pungent colorless gas
boron_trifluoride: a pungent colorless gas
borosilicate
a salt of boric and silicic acids
borosilicate: a salt of boric and silicic acids
bouncing_putty
a soft elastic silicone polymer that increases in elasticity with the application of force; used in the center of golf balls and as shock-absorbent padding
bouncing_putty: a soft elastic silicone polymer that increases in elasticity with the application of force; used in the center of golf balls and as shock-absorbent padding
bowstring_hemp
hemp obtained from the sansevieria
bowstring_hemp: hemp obtained from the sansevieria
box_calf
black calfskin leather tanned with chromium salts
box_calf: black calfskin leather tanned with chromium salts
brewer's_yeast
yeast used in fermenting beer
brewer's_yeast: yeast used in fermenting beer
bottom_fermenting_yeast
brewer's yeast used in bottom fermentation of lager
bottom_fermenting_yeast: brewer's yeast used in bottom fermentation of lager
top_fermenting_yeast
brewer's yeast used in top fermentation of ale
top_fermenting_yeast: brewer's yeast used in top fermentation of ale
bricks_and_mortar
building material consisting of bricks laid with mortar between them
bricks_and_mortar: building material consisting of bricks laid with mortar between them
brushwood
the wood from bushes or small branches
brushwood: the wood from bushes or small branches
brimstone
an old name for sulfur
brimstone: an old name for sulfur
Britannia_metal
an alloy similar to pewter
Britannia_metal: an alloy similar to pewter
bromic_acid
an unstable acid used as an oxidizing agent
bromic_acid: an unstable acid used as an oxidizing agent
bromide
any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs
bromide: any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs
brownstone
a reddish brown sandstone; used in buildings
brownstone: a reddish brown sandstone; used in buildings
buffer
(chemistry) an ionic compound that resists changes in its pH
buffer: (chemistry) an ionic compound that resists changes in its pH
buffer_solution
a solution containing a buffer
buffer_solution: a solution containing a buffer
starting_buffer
buffer solution at the start of a reaction
starting_buffer: buffer solution at the start of a reaction
phosphate_buffer_solution
a solution containing a phosphate buffer
phosphate_buffer_solution: a solution containing a phosphate buffer
building_material
material used for constructing buildings
building_material: material used for constructing buildings
lagging
used to wrap around pipes or boilers or laid in attics to prevent loss of heat
lagging: used to wrap around pipes or boilers or laid in attics to prevent loss of heat
butylene
any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
butylene: any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
isobutylene
used also in making gasoline components
isobutylene: used also in making gasoline components
polybutylene
a polymer of butylene; used in lubricants and synthetic rubber
polybutylene: a polymer of butylene; used in lubricants and synthetic rubber
animal_fat
any fat obtained from animals
animal_fat: any fat obtained from animals
butterfat
the fatty substance of milk from which butter is made
butterfat: the fatty substance of milk from which butter is made
cabinet_wood
moderately dense wood used for cabinetwork
cabinet_wood: moderately dense wood used for cabinetwork
butanone
colorless soluble flammable liquid ketone used as a solvent for resins and as a paint remover and in lacquers and cements and adhesives and cleaning fluids and celluloid
butanone: colorless soluble flammable liquid ketone used as a solvent for resins and as a paint remover and in lacquers and cements and adhesives and cleaning fluids and celluloid
butyl_alcohol
a flammable alcohol derived from butanes and used for solvents
butyl_alcohol: a flammable alcohol derived from butanes and used for solvents
butyric_acid
an unpleasant smelling fatty acid found especially in butter
butyric_acid: an unpleasant smelling fatty acid found especially in butter
butyrin
any of three glycerides of butyric acid
butyrin: any of three glycerides of butyric acid