johnin

noun
joh·​nin | \ ˈyō-nən How to pronounce johnin (audio) \

Medical Definition of johnin

: a sterile solution of the growth products of Johne's bacillus made in the same manner as tuberculin and used to identify Johne's disease by skin tests, conjunctival reactions, or intravenous injection

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“Johnin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/johnin. Accessed 5 Dec. 2020.

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