any of various mites parasitic in birds, usually bloodsucking and including the red fowl mite (Dermanyssus gallinae) and the northern fowl mite (Ornithonyssus sylviarum), both pests of poultry
noun 1. .
- Fowl pest
noun 1. an acute and usually fatal viral disease of domestic fowl, characterized by refusal to eat, high temperature, and discoloration of the comb and wattles 2. another name for Newcastle disease
noun 1. . noun 1. an acute, usually fatal viral disease of chickens and other domestic and wild birds except pigeons, characterized by sudden onset of symptoms including fever, swollen head and neck, bluish-black comb and wattle, and difficult respiration. noun See bird flu noun See bird flu
noun, Veterinary Pathology. 1. a virus disease of chickens and other birds characterized by warty excrescences on the comb and wattles, and often by diphtherialike changes in the mucous membranes of the head.