/ Dictionary / Index D decinormal: Meaning and Definition of Find definitions for: dec•i•nor•mal Pronunciation: (des"u-nôr'mul), [key] — adj. Chem. (of a solution) containing the equivalent weight of solute per liter of solution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decimus decipher Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language