Definition of rictus in English:

rictus

Syllabification: ric·tus
Pronunciation: /ˈriktəs
 
/

noun

A fixed grimace or grin: Ned’s smile had become a rictus of repulsion
More example sentences
  • But once you've got the joke, it becomes repetitive and, despite the presence of seemingly every comic actor from Leslie Phillips to Mackenzie Crook, laughter is replaced by a rictus grin.
  • Enrique's face is twisted into a rictus grin, and he lets out the unmistakable chortle of sheer psychotic derangement.
  • One young acolyte has such a rictus from grinning at his master's jokes that it looks like a physical affliction.

Origin

early 19th century: from Latin, literally 'open mouth', from rict- 'gaped', from the verb ringi.

Derivatives

rictal

Pronunciation: /ˈriktəl/
adjective
More example sentences
  • Myiobius also has the long rictal bristles and erythrurus has the rufous tail found in Onychorhynchus and Cnipodectes.
  • Incongruously, Myrmothera was separated from Grallaria and Thamnocharis on the basis of the absence of rictal bristles; but Hylopezus, which also lacks rictal bristles, was included in Grallaria.
  • Of those, two were skeletal, seven were based on plumage or soft-part colors, and five dealt with tarsal scutellations, rictal bristles, and egg color.

Definition of rictus in:

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Pronunciation: naʊs
noun
common sense; practical intelligence