(ˈ)sīˈklästəmə̇t adjective
also cy·clo·stom·a·tous | ̷ ̷ ̷ ̷ at cyclo- +| st ä m ə d .ə s , -tō m-
Etymology: in sense 1, from cycl- + -stomate or -stomatous; in sense 2, cyclostomate from New Latin Cyclostomata; cyclostomatous from New Latin Cyclostomata + English -ous
1. : having a circular mouth
2. : of or relating to the Cyclostomata or Cyclostomi