¦pī(ˌ) ō+
: infection with or disease caused in sheep, swine, or rarely cattle by a bacterium (Corynebacterium pyogenes) that is usually marked by abscess formation but in sheep commonly takes the form of chronic purulent pneumonia accompanied by extensive fibrosis, pleurisy, and joint lesions

Word History


New Latin, from py- + bacillosis

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Dictionary Entries Near pyobacillosis

Cite this Entry

“Pyobacillosis.” Dictionary, Merriam-Webster, Accessed 4 Jun. 2023.

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