/ Dictionary / Index E Equanil: Meaning and Definition of Find definitions for: E•qua•nil Pronunciation: (ē'kwu-nil), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of meprobamate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: equanil (Thesaurus) equal time equanimity Related Content Daily Word Quiz: loquacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language