sea spider
noun
any member of the arthropod class Pycnogonida, marine invertebrates with eight long walking legs attached to a small body consisting of a cephalothorax and vestigial abdomen.
Origin of sea spider
First recorded in 1660–70
Words nearby sea spider
sea shanty,
sea slater,
sea slug,
sea snail,
sea snake,
sea spider,
sea squab,
sea squill,
sea squirt,
sea stack,
sea star
British Dictionary definitions for sea spider
sea spider
noun
a small marine arachnid, having four pairs of legs and somewhat resembling a spider, unusual in that the male carries the eggs once they are laid and cares for the offspring