Pronunciation: (hip"u-kam'pus),[key] —n., —pl.-piPronunciation: (-pī, -pē).[key] 1. Class. Myth.a sea horse with two forefeet, and a body ending in the tail of a dolphin or fish.
2. Anat.an enfolding of cerebral cortex into the lateral fissure of a cerebral hemisphere, having the shape in cross section of a sea horse.