Definition of obelia in English:

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Pronunciation: /ə(ʊ)ˈbiːlɪə/


A sedentary colonial coelenterate with upright branching stems bearing minute cups in which the polyps sit.
  • Genus Obelia, class Hydrozoa
Example sentences
  • Obelia is used in many zoology textbooks to exemplify the Hydrozoa life cycle.
  • In the coelenterate Obelia, the egg develops into a colonial hydroid consisting of a series of branching Hydra-like organisms called polyps.
  • Cnidarians of the genus Obelia form colonies of polyps in their asexual generation.


Modern Latin, from Greek obelos 'pointed pillar'.

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