🇯🇵Japanese Source WordCode: JA

デュシェンヌ・スマイル

Pronunciation / Transliteration: Dyushennu Sumairu

🇬🇧 Direct English Meaning:
Duchenne Smile/duːˈʃɛn smaɪl/
nounCEFR C1 (Advanced)Top #14500 frequency
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🇯🇵 Example Sentence in Japanese:

"デュシェンヌ・スマイルは心からの笑顔を表します。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A genuine smile that involves contraction of both the zygomatic major muscle (which raises the corners of the mouth) and the orbicularis oculi muscle (which creates crow's feet around the eyes).

    "Psychologists noted a true Duchenne smile on her face when she saw her childhood pet."
  2. 2

    A facial expression widely recognized as an involuntary indicator of true happiness or amusement.

    "It is notoriously difficult to fake a Duchenne smile on demand."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Named after Guillaume Duchenne, a 19th-century French neurologist who extensively studied the biomechanics of facial muscle expressions. The term emerged in the scientific and psychological literature to distinguish genuine, emotion-driven smiles from social or forced expressions.

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