Limpet
WordNet
noun
(1) Any of various usually marine gastropods with low conical shells; found clinging to rocks in littoral areas
(2) Mollusk with a low conical shell
WiktionaryText
Noun
- A small mollusc, of the family Patellidae with a conical shell found clinging to rocks in the intertidal zones of rocky shores.
- Someone dependant; someone disregarding or ignorant of another's personal space.
- He stuck to me like a limpet all day!