D defs.my
Entry 1 sense Webster, 1913

Rictus

· Ric·tus · IPA /ˈɹɪk.təs/
01 n. The gape of the mouth, as of birds; -- often resricted to the corners of the mouth.
  1. 1.
    The gape of the mouth, as of birds; -- often resricted to the corners of the mouth.