noun Veterinary Pathology.
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.
Origin of Marek's disease
after Hungarian veterinarian József Marek (1868–1952), who described it in 1907
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019