/ Dictionary / Index A atenolol: Meaning and Definition of Find definitions for: a•ten•o•lol Pronunciation: (u-ten'u-lôl", -lol"), [key] — n. Pharm. a synthetic beta blocker, CHNO, used in the management of hypertension, angina pectoris, and cardiac arrhythmias and, topically, in the treatment of glaucoma. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: atenolol (Thesaurus) Aten asteroid a tergo* Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language