Breadcrumb Home > Dictionary > Index M Marek's disease: Meaning and Definition of Find definitions for: Ma'rek's disease" Pronunciation: (mar'iks, mär'-), [key] — Vet. Pathol. Vet. Pathol. a contagious cancerous disease of poultry, caused by a herpesvirus and characterized by proliferation of lymphoid cells and paralysis of a limb or the neck. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mare Island mare liberum TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: cognoscenti Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language