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单词 rictus
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ric•tus  (rik′təs),USA pronunciation n., pl. -tus, -tus•es. 
  1. Birdsthe gape of the mouth of a bird.
  2. Physiologythe gaping or opening of the mouth.
  • Latin: wide-open mouth, equivalent. to rig-, variant stem of ringī to open the mouth wide + -tus suffix of verb, verbal action.
  • 1750–60
ric′tal, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
rictus /ˈrɪktəs/ n ( pl -tus, -tuses)
  1. the gap or cleft of an open mouth or beak
  2. a fixed or unnatural grin or grimace, as in horror or death
Etymology: 18th Century: from Latin, from ringī to gape

ˈrictal adj
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更新时间：2025/7/23 14:08:50