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单词 thoracica
释义

Thoracica


Tho`rac´i`ca


n. pl.1.(Zool.) A division of cirripeds including those which have six thoracic segments, usually bearing six pairs of cirri. The common barnacles are examples.

Thoracica


Thoracica

[thə′ras·ə·kə] (invertebrate zoology) An order of the subclass Cirripedia; individuals are permanently attached in the adult stage, the mantle is usually protected by calcareous plates, and six pairs of biramous thoracic appendages are present.
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