A hiccup or hiccough is an involuntary spasm of the diaphragm; typically this repeats several times a minute.
The sudden rush of air into the lungs causes the glottis to close, creating the "hic" noise.
For more information about the topic Hiccup, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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