(friendswood) limpet

lim·pet    ( P )  Pronunciation Key  (limp' it)
n.

1. Any of numerous marine gastropod mollusks, as of the families Acmaeidae and Patellidae, characteristically having a conical shell and adhering to rocks of tidal areas.
2. One that clings persistently.
3. A type of explosive designed to cling to the hull of a ship and detonate on contact or signal.