| 单词 | water lung |
| 释义 | > as lemmaswater lung water lung n. Zoology a respiratory organ of an aquatic invertebrate; spec. a respiratory tree of a holothurian (sea cucumber) (see respiratory tree n. (a) at respiratory adj. Compounds). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > subphylum Eleutherozoa > class Holothurioidea > member of (sea-cucumber) > parts of > branches of the cloaca water lung1840 1840 Penny Cycl. XVII. 356/2 The marginal borders..form the outline of those expanded membranes..which occupy the flatted and larger portions of the shells, and fold over the water-lungs, termed branchiæ or gills. 1877 Encycl. Brit. VII. 639/2 Two, or more rarely four or five, branched processes of the cloaca, the respiratory trees or water-lungs, are ordinarily present. 1922 Biol. Bull. 42 96 The water lungs [of Holothurians] are considered to be organs of respiration. 2001 Trop. Fish Hobbyist June 81/1 They do not live inside the sea cucumber's gut, but the sea cucumber's water lung (a cleaner place no doubt). < as lemmas |
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