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单词 hydroid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
hy•droid  (hī′droid),USA pronunciation adj. 
  1. Invertebratesnoting or pertaining to that form of hydrozoan that is asexual and grows into branching colonies by budding.

n. 
  1. Invertebratesthe phase of a hydrozoan coelenterate that consists of polyp forms usually growing as an attached colony.
  • hydr(a) + -oid 1860–65

Collins Concise English Dictionary © HarperCollins Publishers::
hydroid /ˈhaɪdrɔɪd/ adj
  1. of or relating to the Hydroida, an order of colonial hydrozoan coelenterates that have the polyp phase dominant
  2. (of coelenterate colonies or individuals) having or consisting of hydra-like polyps
 n
  1. a hydroid colony or individual
Etymology: 19th Century: from hydra + -oid
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更新时间：2025/7/23 12:21:09