Definition of gag reflex in English:

gag reflex

noun

  • A reflex action in which the muscles of the throat contract, often so as to cause retching, typically triggered by something touching the back of the mouth.

    ‘the dentist uses acupuncture not only to ease the gag reflex but to reduce anxiety in patients’
    • ‘there was a fishy smell so strong that it triggered her gag reflex’
    • ‘I find it tough to stifle a gag reflex when I see those government TV commercials’