risorius

Etymology
Borrowed from,.

Noun

 * 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.

Translations

 * Chinese:
 * Mandarin:

Etymology
From.

Adjective

 * 1) ridiculous, laughing, smiling