noun
gag reflex
Medical term for the involuntary contraction of the back of the throat triggered by touching the soft palate, back of the tongue, or throat.
咽頭反射が強いと、歯科治療が難しいことがある。
If the gag reflex is strong, dental treatment can be difficult.
Compound of 咽頭 (いんとう, 'pharynx') and 反射 (はんしゃ, 'reflex').