/ Dictionary / Index O organomagnesium: Meaning and Definition of Find definitions for: or•ga•no•mag•ne•si•um Pronunciation: (ôr"gu-nō-mag-nē'zē-um, -zhum, -shē-um, ôr-gan"ō-), [key] — adj. Chem. pertaining to or noting an organic compound, esp. an organic halide, containing magnesium linked to carbon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. organology organometallic Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language