英语词汇“hydrotheca”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

hydrotheca n.

Brit.

/ˌhʌɪdrə(ʊ)ˈθiːkə/

U.S.

/ˌhaɪdrəˈθikə/

/ˌhaɪdroʊˈθikə/

[Latin thēca, Greek ϕήκη receptacle] Zoology one of the perisarcal cups or calycles in which the polypites in certain Hydrozoa (as the Sertularidæ) are lodged.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > cup in which polypites are lodged

hydrotheca1872

1872 H. A. Nicholson Man. Palæontol. 77 Polypites are also protected within ‘hydrothecæ’, or little cup-like expansions derived from the polypary.

1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 129 A hard, chitinous, cuticular skeleton..which frequently gives rise to hydrothecae, into which the hydranths can be retracted.

单词	hydrotheca
释义	> as lemmas hydrotheca hydrotheca n. Brit. /ˌhʌɪdrə(ʊ)ˈθiːkə/ , U.S. /ˌhaɪdrəˈθikə/ , /ˌhaɪdroʊˈθikə/ [Latin thēca, Greek ϕήκη receptacle] Zoology one of the perisarcal cups or calycles in which the polypites in certain Hydrozoa (as the Sertularidæ) are lodged. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > cup in which polypites are lodged hydrotheca1872 1872 H. A. Nicholson Man. Palæontol. 77 Polypites are also protected within ‘hydrothecæ’, or little cup-like expansions derived from the polypary. 1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 129 A hard, chitinous, cuticular skeleton..which frequently gives rise to hydrothecae, into which the hydranths can be retracted. extracted from hydro-comb. form < as lemmas
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> as lemmas