risorius

[医] 笑肌

发音

UK /ɹɪˈsɔː.ɹi.əs/
UK /ɹɪˈzɔː.ɹi.əs/
US /ɹɪˈsɔɹ.i.əs/
US /ɹɪˈzɔɹ.i.əs/

词形变化

risorii 复数 risorii

释义与例句

n.
  1. 1.

    A narrow band of facial muscle arising from the fascia over the masseter and inserting into the tissues at the corner of the mouth, which it draws laterally, as is used when smiling.

    笑肌

    医学

词源

Borrowed from Late Latin rīsōrius (“ridiculous, laughing”), clipping of mūsculus rīsōrius (“laughing muscle”).

来源：wiktionary