| 释义 |
rictal
ric·tus R0237300 (rĭk′təs)n. pl. rictus or ric·tus·es 1. A gaping grimace: "his mouth gaping in a kind of rictus of startled alarm" (Richard Adams).2. a. The expanse of an open mouth or a bird's beak.b. The corner of the mouth or the fleshy area where the upper and lower mandibles of a bird meet.
[Latin, from past participle of ringī, to gape.]
ric′tal adj.
EncyclopediaSeerictus |