The noun COLORIMETER has 1 sense: 1. a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents. Familiarity information: COLORIMETER used as a noun is very rare.he noun COLORIMETER has 1 sense: 1. a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents. Familiarity information: COLORIMETER used as a noun is very rare.
anhydride - a compound formed from one or more other compounds in a reaction resulting in removal of water. 1  acetic anhydride - a compound that is needed in order to refine opium into heroin. 2  phthalic anhydride - a white cyclic anhydride.
an adrenergic alkaloid obtained from several species of the shrub Ephedra or produced synthetically; used as the hydrochloride as a bronchodilator, antiallergic, central nervous system stimulant, mydriatic, pressor agent, and for stimulation of the Î±-adrenergic receptors in the treatment of certain types of urinary incontinence.