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Medical Term:

risus caninus

Pronunciation: ri'sus ka-ni'nus


the semblance of a grin caused by facial spasm, seen especially in tetanus but also in some kinds of poisoning.

Synonym(s): canine spasm, risus sardonicus, sardonic grin, trismus sardonicus

[L. risus, laugh + caninus, doglike]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.