a mythological sea creature with the forelegs of a horse and the tail of a fish
2.
any marine teleost fish of the genus Hippocampus, having a horselike head
seahorse (sense 1)
3.
an area of cerebral cortex that forms a ridge in the floor of the lateral ventricle of the brain, which in cross section has the shape of a sea horse. It functions as part of the limbic system
Derived forms
hippocampal (ˌhippoˈcampal)
adjective
Word origin
C16: from Latin, from Greek hippos horse + kampos a sea monster