3 Results for opisthobranchia

หรือค้นหา: -opisthobranchia-, *opisthobranchia*

WordNet (3.0)

(n) gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares, Syn. subclass Opisthobranchia

Collaborative International Dictionary (GCIDE)

Opisthobranchiata	{ ‖ } n. pl. [ NL., from Gr. 'o`pisqen behind + &unr_; gills. ] (Zool.) A division of gastropod Mollusca, in which the breathing organs are usually situated behind the heart. It includes the tectibranchs and nudibranchs. [ 1913 Webster ] Variants: Opisthobranchia
Opisthobranchiate	a. (Zool.) Of or pertaining to the Opisthobranchiata. -- n. One of the Opisthobranchiata. [ 1913 Webster ]

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