acorn barnacle

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acorn barnacle

n.
Any of various barnacles having a conical shell that is directly attached to rocks or other hard surfaces.

[From the resemblance of the barnacle in its shell to an acorn in its cupule .]

acorn barnacle

or

acorn shell

n
(Animals) any of various barnacles, such as Balanus balanoides, that live attached to rocks and have a volcano-shaped shell from the top of which protrude feathery food-catching appendages (cirri)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acorn barnacle - barnacle that attaches to rocks especially in intertidal zonesacorn barnacle - 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
Balanus, genus Balanus - type genus of the family Balanidae
Translations
balane