Meaning of cyclostome in English:



  • An eel-like jawless vertebrate with a round sucking mouth, of a former group that included the lampreys and hagfishes.

    Subclass Cyclostomata, now incorporated in the superclass Agnatha

    • ‘Data concerning key evolutionary invertebrate and vertebrate groups, the protochordates, chondrichthyes and cyclostomes, are essential to establish evolutionary patterns of the peptides.’
    • ‘The skeleton of cyclostomes furnishes far fewer taxonomic characters than that of the more complex cheilostomes.’
    • ‘This extant species has erect jointed colonies, an articulated growth-form which seemingly evolved convergently with that of crisiid cyclostomes.’
    • ‘Similar structures described in other cyclostomes appear to indicate attachment to originally flexible substrates, particularly algae.’
    • ‘The presence of a luteal like structure in cyclostomes has been observed but its function is still unclear.’


Mid 19th century from cyclo- + Greek stoma ‘mouth’.