hydroid

hydroid
[ˈhʌɪdrɔɪd]
(Zoology)()
noun
  1. a coelenterate of an order which includes the hydras. They are distinguished by the dominance of the polyp phase
    水螅类(包括水螅,以水螅型占优势为特点)
  2. Order Hydroida, class Hydrozoa
    水螅虫目,水螅虫纲
adjective
  1. of or relating to coelenterates of this group
    (与)水螅类(有关)的
    ■another term for polypoid (in sense 1)
    同 polypoid (义项1)
语源
  1. mid 19th cent.: from hydra + -oid
英语宝典
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