Nouns denoting substances
- succinic acid
- a dicarboxylic acid (C4H6O4) active in metabolic processes
- borosilicate
- 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
- isomerase
- an enzyme that catalyzes its substrate to an isomeric form
- excretion
- waste matter (as urine or sweat but especially feces) discharged from the body
- bond
- a superior quality of strong durable white writing paper; originally made for printing documents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
- maltha
- 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
- Th
- 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
- inducer
- an agent capable of activating specific genes
- transparent substance
- a material having the property of admitting light diffusely; a partly transparent material
- raveling
- 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
- trifluoromethane
- colorless gas haloform CHF3 (similar to chloroform)
- phosgene
- a colorless poisonous gas that smells like new-mown hay; used in chemical warfare
- quartz
- 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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