| 释义 |
DictionarySeeblack tongueblacktongue
blacktongue[′blak‚təŋ] (veterinary medicine) A niacin-deficiency disease of dogs, with black discoloration of the tongue. Blacktongue
(1) A hyperpigmented tongue seen in dogs with niacin deficiency, equivalent to pellagra
(2) The natural colour of the tongue of the chow-chow and shar-pei breeds of dogs. Regarded as a form of benign pigmentation, any dog can have a black tongue |