Nouns denoting substances

succinic acid
a dicarboxylic acid (C4H6O4) active in metabolic processes
a salt of boric and silicic acids
Ringer's solution
an aqueous solution containing the chlorides of sodium and potassium and calcium that is isotonic to animal tissues; used to correct dehydration and (in physiological experiments) as a medium for in vitro preparations
bacterial toxin
any endotoxin or exotoxin formed in or elaborated by bacterial cells
an enzyme that catalyzes its substrate to an isomeric form
waste matter (as urine or sweat but especially feces) discharged from the body
a superior quality of strong durable white writing paper; originally made for printing documents
sodium nitrite
nitrite used to preserve and color food especially in meat and fish products; implicated in the formation of suspected carcinogens
a thick black tar intermediate between petroleum and asphalt
valeric acid
a clear liquid carboxylic acid used in perfumes and drugs
greaseproof paper
paper that is impermeable to oil or grease; used in cooking
metallized dye
acid dye in which the negative ion contains a chelated metal atom
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
an agent capable of activating specific genes
transparent substance
a material having the property of admitting light diffusely; a partly transparent material
a bit of fiber that has become separated from woven fabric
stained glass
glass that has been colored in some way; used for church windows
colorless gas haloform CHF3 (similar to chloroform)
a colorless poisonous gas that smells like new-mown hay; used in chemical warfare
a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
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