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Duchenne smile

noun

Etymology

Named after the French physician Guillaume Duchenne de Boulogne (1806–1875) who identified it.

Definitions

  1. A smile involving contraction of both the zygomatic major muscle (which raises the…

    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).

The neighborhood

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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA