/ Dictionary / Index A allotropic: Meaning and Definition of Find definitions for: al•lo•trop•ic Pronunciation: (al"u-trop'ik, -trō'pik), [key] — adj. pertaining to or characterized by allotropy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: allotropic (Thesaurus) allotrope allotropy Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language