| 单词 | nuculoid |
| 释义 | nuculoid/ˈnjuːkjʊlɔɪd/Zoology and Palaeontology adjective Originally: of, relating to, or resembling bivalve molluscs of a type represented by the nut shell Nucula. In later use: specifically of, relating to, or designating protobranch bivalve molluscs of the order Nuculoida, which includes mainly deposit-feeding species attested in the fossil record from the Ordovician period onwards, and often regarded as among the most primitive extant bivalves. noun A nuculoid mollusc. Origin |
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