A limpet is a small sea animal with a cone-shaped shell which attaches itself tightly to rocks.
limpet in British English
(ˈlɪmpɪt)
noun
1.
any of numerous marine gastropods, such as Patella vulgata (common limpet) and Fissurella (or Diodora) apertura (keyhole limpet), that have a conical shell and are found clinging to rocks
2.
any of various similar freshwater gastropods, such as Ancylus fluviatilis (river limpet)
3. (modifier)
relating to or denoting certain weapons that are attached to their targets by magnetic or adhesive properties and resist removal
limpet mines
4.
a small open caisson shaped to fit against a dock wall, used mainly in repair work
Word origin
Old English lempedu, from Latin lepas, from Greek
limpet in American English
(ˈlɪmpɪt)
noun
a gastropod mollusk of various families, mostly marine, with a single, low, cone-shaped shell and a thick, fleshy foot, by means of which it clings to rocks, timbers, etc.
Word origin
ME lempet < OE lempedu < ML lempreda, limpet, lamprey