/ Dictionary / Index G gassing: Meaning and Definition of Find definitions for: gas•sing Pronunciation: (gas'ing), [key] — n. an affecting, overcoming, or poisoning with gas or fumes. the act of a person or thing that gasses. a process by which something is gassed, as in fumigation. the evolution of gases during electrolysis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gassing (Thesaurus) gasser gas station Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language