| hiccup | A diaphragmatic spasm causing a sudden inhalation which is interrupted by a spasmodic closure of the glottis, producing a noise. (05 Mar 2000) |
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| hiccups | Spasmodic contractions of the diaphragm that are involuntary and often rhythmic. Usually just a minor nuisance, prolonged hiccups can become a major problem. (12 Dec 1998) |
| epidemic hiccup | A persistent hiccup occurring as a complication of influenza. (05 Mar 2000) |
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