Medical Dictionary

Cyclostomata

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noun plural Cy·clo·sto·ma·ta \ˌsī-klō-ˈstō-mət-ə, ˌsik-lō-, -ˈstäm-ət-ə\

Medical Definition of Cyclostomata

  1. :  a class or order of primitive vertebrates that have a large jawless sucking mouth, no limbs or paired fins, a wholly cartilaginous skeleton with persistent notochord, and 6 to 14 pairs of gill pouches and that include the lampreys and the hagfishes—compare chondrichthyes


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a rounded knoll or a ridge of ice

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