Definition of Cirripedia in US English:


plural noun

  • A class of crustaceans that comprises the barnacles.

    • ‘Most Cirripedia do not contain an oxygen transport protein.’
    • ‘As a result, the debate bears on the following points: whether or not the Ascothoracica to be included within the Cirripedia and whether or not the Rhizocephala belong to the Cirripedia.’
    • ‘This interest in marine invertebrates was to be a life long obsession, climaxing in his massive four-volume contribution to the comparative anatomy and systematics of fossil and living Cirripedia or ‘barnacles’.’
    • ‘Rhizocephala belong to the group Cirripedia and are endoparasites on decapods (shrimps and crabs).’
    • ‘On the whole the maxillopodan groups Ostracoda and Cirripedia and the Malacostraca have left the most significant fossil records.’


Modern Latin (plural), from Latin cirrus ‘a curl’ (because of the form of the legs) + pes, ped- ‘foot’.