cir·ri·pede 
(sîrə-pēd′) also cir·ri·ped (-pĕd′)
(sîrə-pēd′) also cir·ri·ped (-pĕd′)n.
Any of various crustaceans of the subclass Cirripedia, which includes the barnacles and related organisms that attach themselves to objects or become parasitic in the adult stage.
[From New Latin Cirripedia, order name : CIRR(US) + Latin pēs, ped-, foot; see -PED.]
cirri·pede′ adj.