Duchenne smile

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English[edit]

Etymology[edit]

After the French physician Duchenne de Boulogne (1806-1875).

Noun[edit]

Duchenne smile (plural Duchenne smiles)

English Wikipedia has an article on:
Wikipedia
  1. A smile involving contraction of both the zygomatic major muscle (which raises the corners of the mouth) and the orbicularis oculi (which raises the cheeks and forms crow's feet around the eyes).