/ Dictionary / Index H halocarbon: Meaning and Definition of Find definitions for: hal•o•car•bon Pronunciation: (hal"u-kär'bun), [key] — n. Chem. any of a class of compounds containing carbon, one or more halogens, and sometimes hydrogen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: halocarbon (Thesaurus) halo blight halocline Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language