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单词 obelia
释义

Definition of obelia in English:

obelia

nounə(ʊ)ˈbiːlɪəōˈbēlyə
Zoology
  • A sedentary colonial coelenterate with upright branching stems bearing minute cups in which the polyps sit.

    Genus Obelia, class Hydrozoa

    Example sentencesExamples
    • Cnidarians of the genus Obelia form colonies of polyps in their asexual generation.
    • Obelia is used in many zoology textbooks to exemplify the Hydrozoa life cycle.
    • This is a slide of Obelia, a colonial marine cnidarian that shows a distinct polymorphism in the organization of its members.
    • Although most of the life of Obelia is spent in the sessile polyp form, medusa buds produced within reproductive polyps called gonangia escape into the water column.
    • In the coelenterate Obelia, the egg develops into a colonial hydroid consisting of a series of branching Hydra-like organisms called polyps.
    • This slide shows a medusa from the colonial cnidarian Obelia.

Origin

Modern Latin, from Greek obelos 'pointed pillar'.

 
 

Definition of obelia in US English:

obelia

nounōˈbēlyə
Zoology
  • A genus of marine animals that bear polyps and produce medusae, and that form colonies that attach to rocks or the ocean bottom.

    Genus Obelia, class Hydrozoa

    Example sentencesExamples
    • Cnidarians of the genus Obelia form colonies of polyps in their asexual generation.
    • This slide shows a medusa from the colonial cnidarian Obelia.
    • In the coelenterate Obelia, the egg develops into a colonial hydroid consisting of a series of branching Hydra-like organisms called polyps.
    • This is a slide of Obelia, a colonial marine cnidarian that shows a distinct polymorphism in the organization of its members.
    • Although most of the life of Obelia is spent in the sessile polyp form, medusa buds produced within reproductive polyps called gonangia escape into the water column.
    • Obelia is used in many zoology textbooks to exemplify the Hydrozoa life cycle.

Origin

Modern Latin, from Greek obelos ‘pointed pillar’.

 
 
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更新时间:2024/11/11 8:46:47