Definition of cyclostome in English:

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Pronunciation: /ˈsʌɪklə(ʊ)stəʊm/


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


Mid 19th century: from cyclo- + Greek stoma 'mouth'.

For editors and proofreaders

Line breaks: cyclo|stome

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