Medical Term:

risus sardonicus

Pronunciation: sar-don′i-kŭs

Synonym(s): risus caninus

[L. risus, laughter, + sardonicus, fr. G. sardanios, scornful, infl. by sardonios, Sardinian, ref. to effects of Strychnos nux-vomica, poisonous herb fr. Sardinia]

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