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

单词

Cercaria

释义

‖ Cercaria Zool.|səˈkɛərɪə|
[mod.L., f. Gr. κέρκος tail.]
A kind of trematode worm or fluke in its second larval stage, shaped like a tadpole, found as a parasite in the bodies of molluscs. Formerly supposed to be a genus of Infusoria.
1841–71T. R. Jones Anim. Kingd. 159 In these yellow worms, which are about 2 lines long..the Cercariæ, which are the larvæ of the actual Flukes, are developed.1877Huxley Anat. Inv. Ann. iv. 204 The Cercaria has a long tail with lateral membranous expansions.
Hence cerˈcarial, cerˈcarian, cerˈcariform adjs.
1876Beneden Anim. Parasites 45 This trematode passes its cercarial life freely in the sea.1836–9Todd Cycl. Anat. II. 113/2 The Cercarian tribe.1869Nicolson Zool. xxiv. (1880) 237 In many cases the larvæ are ‘cercariiform’ or ‘tailed’.1877Huxley Anat. Inv. An. iv. 205 Having undergone no Cercarian metamorphosis.Ibid. xii. 675 The Trematoda, with their cercariform larvae.

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