cyclostome
See cyclostome in American Heritage Dictionary 4
cy·clo·stome
noun Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.
Origin: From New Latin Cyclostomī and Cyclostomata, class names : cyclo- + Greek stoma, stomat-, mouth.
Related Forms:
- cyclostomate cy·closˈto·mateˌ (sī-klŏsˈtə-mātˌ, -mĭt), cyˌclo·stomˈa·tous (sīˌklə-stŏmˈə-təs, -stōˈmə-) adjective
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