limpet

US /ˈlɪm.pɪt/
UK /ˈlɪm.pɪt/
"limpet" picture
1.

a marine mollusk with a low conical shell, found clinging to rocks in the intertidal zone.

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The rock was covered with tiny limpets.
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He carefully detached a limpet from the rock.
2.

a person who clings to another person or thing.

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He was a real limpet, always following her around.
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The child was a little limpet, refusing to let go of his mother's hand.
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clingerhanger-onleechbarnacle