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单词 nucleobranch
释义

nucleobranchn.adj.

Forms: 1800s nucleobranch, 1800s nucleobranche.
Origin: A borrowing from French. Etymon: French nucléobranche.
Etymology: < French nucléobranche (H. M. D. de Blainville 1814, in Bull. des Sci. par la Soc. Philomatique de Paris 4 177) < nucléo- nucleo- comb. form + -branche -branch comb. form, in allusion to the clustering of the gills in a small mass (nucleus). Compare scientific Latin †Nucleobranchia (attributive to de Blainville by J. E. Gray 1821), †Nucleobranchiata (1825 de Blainville).
Zoology. Obsolete. rare.
A. n.
A gastropod mollusc of the former order Nucleobranchiata, which chiefly comprised the heteropods.De Blainville also included the cephalopod genus Argonauta in his order.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Nucleobranchiata > member of
nucleobranch1851
1851 S. P. Woodward Man. Mollusca i. 11 The nucleobranches and pteropods swim in the open sea.
1861 Rep. Smithsonian Instit. 172 The Nucleobranchs have the gills in a tuft at the lower part of the back, sometimes protected by a shell.
B. adj.
Of, relating to, or characteristic of the former order Nucleobranchiata.
ΚΠ
1890 Cent. Dict. Nucleobranch, pertaining to the Nucleobranchiata, or having their characters; heteropodous.

Derivatives

nucleobranchiate adj. rare
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > of superorder Branchifera > of the nature of a heteropod
nucleobranchiate1854
1854 S. P. Woodward Man. Mollusca ii. 198 There are two families of nucleobranchiate mollusks.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online December 2020).
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n.adj.1851
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更新时间:2024/11/10 22:21:58