/ Dictionary / Index A anesthetic: Meaning and Definition of Find definitions for: an•es•thet•ic Pronunciation: (an"us-thet'ik), [key] — n. a substance that produces anesthesia, as halothane, procaine, or ether. —adj. pertaining to or causing physical insensibility: an anesthetic gas. physically insensitive: Halothane is used to produce an anesthetic state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anesthetic (Thesaurus) anesthesiology anesthetist Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language