Dictionary

cyclostome

noun cy·clo·stome \ˈsī-klə-ˌstōm\

Definition of CYCLOSTOME

:  any of a class (Cyclostomata) of jawless fishes having a large sucking mouth and comprising the hagfishes and lampreys

Origin of CYCLOSTOME

ultimately from Greek kykl- + stoma mouth — more at stomach
First Known Use: 1835

cyclostome

noun cy·clo·stome \ˈsī-klə-ˌstōm, ˈsik-lə-\   (Medical Dictionary)

Medical Definition of CYCLOSTOME

:  any vertebrate of the major taxonomic group Cyclostomata

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