Meaning of johnin

joh•nin

Pronunciation: (yō'nin), [key]
— n. Vet. Med.
  1. a sterile solution prepared from the growth products of the bacillus Mycobacterium paratuberculosis, used chiefly in the diagnosis of Johne's disease.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.