1) Hydroid 2) Hydrozoan
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https://www.crosswordclues.com/clue/planula
A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species. The planula forms from the fertilized egg of a medusa, as the case in scyphozoans and some hydrozoans, or from a polyp, as in the case of anthozoans. Depending on the species, the planula either metamorphoses directly into a free-sw...
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http://en.wikipedia.org/wiki/Planula
• (n.) In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula. Sometimes used as synonymous with gastrula. • (n....
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http://thinkexist.com/dictionary/meaning/planula/
free-swimming or crawling larval type common in many species of the phylum Cnidaria (e.g., jellyfish, corals, and sea anemones). The planula body is ... [6 related articles]
Found on
http://www.britannica.com/eb/a-z/p/77
Origin: L, a little plane. ... 1. <biology> In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula. Sometimes used a...
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http://www.encyclo.co.uk/local/20973
(plan´u-lә) a larval coelenterate.
Found on
http://www.encyclo.co.uk/local/21001
Plan'u·la noun ;
plural Planulæ . [ Latin , a little plane.]
1. (Biol.) In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange th...
Found on
http://www.encyclo.co.uk/webster/P/101
Type: Term Pronunciation: plan′yū-lă, -lē Definitions: 1. Name given by Lankester to a coelenterate embryo when it consists of the two primary germ layers only, the ectoderm and endoderm.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=69382
[
n] - the flat ciliated free-swimming larva of hydrozoan coelenterates
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http://www.webdictionary.co.uk/definition.php?query=planula
The planktonic larval form produced by scleractinian corals and coelenterates
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https://www.encyclo.co.uk/local/20125
noun the flat ciliated free-swimming larva of hydrozoan coelenterates
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https://www.encyclo.co.uk/local/20974
Free-swimming larval stage of a coelenterate.
Found on
https://www.encyclo.co.uk/local/21411
No exact match found.
