gag reflex

Từ điển WordNet v3.1 - WordNet Dictionary

noun

normal reflex consisting of retching;
may be produced by touching the soft palate in the back of the mouth
• Syn:
pharyngeal reflex
• Hypernyms:
reflex, reflex response, reflex action, instinctive reflex, innate reflex,
inborn reflex, unconditioned reflex, physiological reaction