Medical Definition of jelly
1: a soft somewhat elastic food product made usually with gelatin or pectin; especially : a fruit product made by boiling sugar and the juice of fruit
2: a substance resembling jelly in consistency: asa: a transparent elastic gelb: a semisolid medicated or cosmetic preparation often having a gum base and usually intended for local application <ephedrine jelly>c: a jellylike preparation used in electrocardiography to obtain better conduction of electricity <electrode jelly>
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