the GNU version of the Collaborative International Dictionary of English
n. Hiccough.
The Century Dictionary and Cyclopedia
n. A hiccup.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. (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
Word Usage
"Hiccups, more officially referred to as singultus from the Latin, to catch your breath while sobbing, are repeated, spasmodic contractions of the diaphragm causing a quick inhalation that is then cut short by an involuntary closing of the glottis."