单词	obelia
释义	obelia /ə(ʊ)ˈbiːlɪə / noun Zoology A sedentary colonial coelenterate with upright branching stems bearing minute cups in which the polyps sit. Genus Obelia, class Hydrozoa. 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. Origin Modern Latin, from Greek obelos 'pointed pillar'.
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