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zygobranchia |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Zygobranchia \Zyg`o*bran"chi*a\, n. pl [NL., from Gr ? a yoke + ? a gill.] (Zo["o]l.) A division of marine gastropods in which the gills are developed on both sides of the body and the renal organs are also paired. The abalone ({Haliotis}) and the keyhole limpet ({Fissurella}) are examples.