Also found in: Thesaurus.
Related to Balanus balanoides: acorn barnacle
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|Noun||1.||Balanus balanoides - barnacle that attaches to rocks especially in intertidal zones|
barnacle, cirriped, cirripede - marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces
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