Cynic spasm

(Med.)

a convulsive contraction of the muscles of one side of the face, producing a sort of grin, suggesting certain movements in the upper lip of a dog.

(Med.)

See under Cynic.

cynic spasm

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]

cynic spasm

Spasm of the facial muscles causing a grin or snarl like a dog. Synonym: risus sardonicusSee also: spasm

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