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johnin

[yoh-nin]
noun Veterinary Medicine.
  1. a sterile solution prepared from the growth products of the bacillus Mycobacterium paratuberculosis, used chiefly in the diagnosis of Johne's disease.
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Origin of johnin

john- (see Johne's disease) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018