Hydroid meaning

hīdroid
Any of numerous solitary or colonial hydrozoans having a polyp rather than a medusa as the dominant stage of the life cycle.
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The asexual polyp in the life cycle of a hydrozoan.
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Like a hydra or polyp.
adjective
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Of or related to an order (Hydroida) of hydrozoans, including the hydras and many colonial marine species.
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Any hydroid hydrozoan.
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Any of numerous, usually colonial marine cnidarians, having a polyp rather than a medusoid form as the dominant stage of the life cycle. Hydroids have a simple cylindrical body with a mouthlike opening surrounded by tentacles. Most species form colonies with individual hydroids branching off from a common hollow tube that is probably used to share ingested food. The young develop from eggs or from buds. The most well-known hydroids are the hydras (genus Hydra ), which are atypical in being both freshwater and solitary.
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Any of many colonial coelenterates that exist mainly as a polyp; a hydrozoan.
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Of or pertaining to such creatures.
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Origin of hydroid

  • hydr(a) –oid

    From American Heritage Dictionary of the English Language, 5th Edition