/ Dictionary / Index E ethchlorvynol: Meaning and Definition of Find definitions for: eth•chlor•vy•nol Pronunciation: (eth"klôr-vīn'l, -klōr-), [key] — n. Pharm. a colorless to yellow, pungent, aromatic liquid, CHClO, used as a hypnotic and sedative, esp. in the short-term management of insomnia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ethchlorvynol (Thesaurus) ethanolamine Ethel Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language