risus caninus


Also found in: Dictionary.

ri·sus ca·ni·nus

(rī'sŭs kā-nī'nŭs),
the semblance of a grin caused by facial spasm, seen especially in tetanus but also in some kinds of poisoning.
[L. risus, laugh + caninus, doglike]

ri·sus ca·ni·nus

(rī'sŭs kā-nī'nŭs)
The semblance of a grin caused by facial spasm, especially in tetanus.
Synonym(s): cynic spasm, sardonic grin.
[L. risus, laugh + caninus, doglike]