Medical Dictionary

perosis

noun pe·ro·sis \pə-ˈrō-səs\
plural pe·ro·ses \-ˌsēz\

Medical Definition of PEROSIS

:  a disorder of poultry that is characterized by leg deformity and is caused by a deficiency of vitamins (as biotin or choline) or minerals (as manganese) in the diet—called also hock disease, slipped tendon

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