noun ric·tus \ˈrik-təs\

Definition of rictus

  1. 1 :  the gape of a bird's mouth

  2. 2a :  the mouth orificeb :  a gaping grin or grimace

Origin and Etymology of rictus

New Latin, from Latin, open mouth, from ringi to open the mouth; akin to Old Church Slavonic rǫgŭ mockery

First Known Use: 1685

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