sea horse

or sea·horse


noun

any fish of the genus Hippocampus, of the pipefish family, having a prehensile tail, an elongated snout, and a head bent at right angles to the body.
a fabled marine animal with the foreparts of a horse and the hind parts of a fish.
a walrus.

Origin of sea horse

1425–75; late Middle English sehors walrus; compare German Seepferd

British Dictionary definitions for sea horse

sea horse

noun

any marine teleost fish of the temperate and tropical genus Hippocampus, having a bony-plated body, a prehensile tail, and a horselike head and swimming in an upright position: family Syngnathidae (pipefishes)
an archaic name for the walrus
a fabled sea creature with the tail of a fish and the front parts of a horse