Cirripedia
plural noun
Cir·ri·pe·dia
\ˌsirəˈpēdēə\
Definition of Cirripedia
: a subclass of Crustacea comprising the barnacles, goose barnacles, and a few highly modified parasitic related forms, all being free-swimming in the larval stages but permanently attached or parasitic as adults
cirripedial
adjectiveFrom the M-W Editors
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Origin and Etymology of cirripedia
New Latin, from cirr- + -pedia footed ones (from Latin ped-, pes foot) — more at foot
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