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barnacle

bar·na·cle

barnacle

 
pronunciation:
bar n kl
features:
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part of speech: noun
definition: a small sea animal that attaches its shell to rocks, the bottom of ships, docks, and other objects in shallow parts of the ocean. Barnacles float freely in the ocean when they are young. They develop shells with sharp edges as adults. Barnacles are kinds of crustaceans.
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  crustacean, invertebrate, ocean