risus caninus


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