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单词 zootheca
释义

> as lemmas

zootheca
zootheca n.
Brit. /ˌzuːə(ʊ)ˈθiːkə/
,
/ˌzəʊə(ʊ)ˈθiːkə/
,
U.S. /ˌzoʊəˈθikə/
,
/ˌzuəˈθikə/
(plural zoothecæ) [after scientific Latin zootheca (1850 or earlier; rare)] now rare (in algae, fungi, and various lower plants) a cell or other structure containing one or more zoospores; (in some colonial invertebrates) a sheath enclosing a zooid.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > spore > structure containing
zootheca1852
sporocyst1861
sporangiolum1895
1852 J. H. Balfour Class Bk. Bot. I. iv. 349 (caption) Antheridium, or Zootheca of a Sea-weed (Fucus serratus), containing phytozoa.
1861 R. Bentley Man. Bot. i. v. 376 The antheridium..is filled at maturity with a number of minute cells, which have been termed zoothecæ.
1908 H. Osborn Econ. Zool. iii. 50 Where the individual zoid is included in a hard covering, this may be known as zootheca.
2016 T. N. Molodtsova et al. in S. Goffredo & Z. Dubinsky Cnidaria, Past, Present & Future xxv. 403/2 When the juveniles reach about 1 mm, they leave the zootheca and start building a mucus tube attached to the main stem of the hydroid colony.
extracted from zoo-comb. form
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as lemmas
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