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Noun: rock barnacle  rók baa(r)-nu-kul
  1. Barnacle that attaches to rocks especially in intertidal zones
    "The rocks were covered with clusters of rock barnacles";
    - acorn barnacle, Balanus balanoides

Derived forms: rock barnacles

Type of: barnacle, cirriped, cirripede

Part of: Balanus, genus Balanus

Encyclopedia: Rock barnacle