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单词 tetrabranchiate
释义 tetrabranchiate, a. and n. Zool.|tɛtrəˈbræŋkɪət|
[ad. mod.L. tetrabranchiāt-um: see prec. and -ate2 2.]
a. adj. Belonging to the Tetrabranchiata, an order of cephalopods (mostly extinct) having four branchiæ or gills.
b. n. A cephalopod belonging to this order; a tetrabranch.
1835–6Todd's Cycl. Anat. I. 557/1 The Sepia..manifests..a near affinity to the Tetrabranchiate order.1851Woodward Mollusca i. 78 The shell of the tetrabranchiate cephalopods is an extremely elongated cone.1872Nicholson Palæont. 189 The Tetrabranchiate forms, with chambered shells, attained their maximum in the..Silurian period.
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