hydroid
/hahy-droid/US // ˈhaɪ drɔɪd //UK // (ˈhaɪdrɔɪd) //
水瘤,水生动物,绣球,水生植物
Related Words
Definitions
adj.形容词 adjective
- 1
- : noting or pertaining to that form of hydrozoan that is asexual and grows into branching colonies by budding.
n.名词 noun
- 1
- : the phase of a hydrozoan coelenterate that consists of polyp forms usually growing as an attached colony.
Synonyms & Antonyms
Examples
The illustration shows a plant on which the hydroid Sertularia pumila is growing.
A hydroid about one inch high, growing in patches and appearing like tufts of moss on rocks between tide-marks.
There are some species which, having no hydroid or strobila state, mature without alternation of generation (metagenesis).
This hydroid is found creeping over seaweeds in tide-pools from Long Island Sound northward.
The hydroid Hydractinia polyclina often covers the exterior of such shells with a brown, velvety growth.
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