Nouns denoting substances

night soil
human excreta used as fertilizer
 
urease
an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia; is present in intestinal bacteria
 
benzoyl group
the univalent radical derived from benzoic acid
 
silver nitrate
a nitrate used in making photographic emulsions; also used in medicine as a cautery and as a topical antibacterial agent
 
sodium iodide
a crystalline salt used like potassium iodide
 
RNase
a transferase that catalyzes the hydrolysis of ribonucleic acid
 
phospholipid
any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base; an important constituent of membranes
 
trisaccharide
any of a variety of carbohydrates that yield three monosaccharide molecules on complete hydrolysis
 
red brass
brass with enough copper to give it a reddish tint; used for plumbing pipe and other brass hardware and in cheap jewelry
 
anabolic steroid
any of a group of synthetic steroid hormones used to stimulate muscle and bone growth; more than 100 have been developed and each requires a prescription to be used legally in the United States; sometimes used illicitly by athletes to increase their strength
 
polymethyl methacrylate
a transparent plastic used as a substitute for glass
 
gallic acid
a colorless crystalline acid obtained from tannin
 
potassium hydrogen tartrate
a salt used especially in baking powder
 
glycoside
a group of compounds derived from monosaccharides
 
effluvium
a foul-smelling outflow or vapor (especially a gaseous waste)
 
sal volatile
a solution of ammonium carbonate in ammonia water and alcohol
 
activator
(biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription
 
white vitriol
a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc
 
cesium 137
a radioactive isotope of cesium used in radiation therapy
 
facial tissue
tissue paper suitable for use on the face
 
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