- hiccup, hiccough, singultus - (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion; "how do you cure the hiccups?"
--1 is a kind of symptom; reflex, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction
Derived form: verb hiccough1