Breadcrumb Home > Dictionary > Index O ochlesis: Meaning and Definition of Find definitions for: och•le•sis Pronunciation: (ok-lē'sis), [key] — n. Pathol. any disease caused by overcrowding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ocher ochlocracy ✖ Related Content Daily Word Quiz: hegira Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language