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单词 hydrocyst
释义

> as lemmas

hydrocyst
hydrocyst n.
Brit. /ˈhʌɪdrə(ʊ)sɪst/
,
U.S. /ˈhaɪdrəˌsɪst/
[Greek κύστις bladder, cyst n.] Zoology one of the tentacles or feelers, resembling immature polypites, attached to the cœnosarc in certain Hydrozoa, as in the family Physophoridæ.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > modified zooid (tentacle)
hydrocyst1869
taster1885
1869 H. A. Nicholson Man. Zool. 82 There occur also in the Physophoridæ certain peculiar bodies, termed hydrocysts or ‘feelers’.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 770 Hydrocysts or feelers..are polypites in which the distal or oral extremity is imperforate and usually armed with cnidoblasts.
extracted from hydro-comb. form
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as lemmas
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