Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
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.
Definition source: English Wiktionary via Wiktextract
Topics: anatomy, medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Borrowed from Late Latin rīsōrius (“ridiculous, laughing”), clipping of mūsculus rīsōrius (“laughing muscle”).
Across languages
1 source translations are retained for this English entry.
