/ Dictionary / Index S stoichiometric: Meaning and Definition of Find definitions for: stoi•chi•o•met•ric Pronunciation: (stoi"kē-u-me'trik), [key] — adj. Chem. of or pertaining to stoichiometry. pertaining to or involving substances that are in the exact proportions required for a given reaction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stoichiometric (Thesaurus) stoical stoichiometry Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language