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单词 perennibranch
释义 perennibranch, a. and n. Zool.|pəˈrɛnɪbræŋk|
[f. mod.L. Perennibranchia neut. pl., f. perennis perennial + branchia.]
a. adj. Having permanent gills; belonging to the division Perennibranchia (or Perennibranchiata) of Amphibians, which retain their gills through life.
b. n. An amphibian of this division. Also perenniˈbranchiate a. and n. (opposed to caducibranchiate).
[1835Kirby Hab. & Inst. Anim. II. xxii. 412 Perennibranchia, or the Proteus, Siren, Axolot.]1835Penny Cycl. III. 186/2 Reptiles belonging to the perennibranchiate family.1848Craig, Perennibranchiates.1875Huxley in Encycl. Brit. I. 762/1 It is probable..that no known Labyrinthodonts were perennibranchiate.1888Rolleston & Jackson Anim. Life 404 In the perennibranch Urodela [the gills] are retained.1890Cent. Dict., Perennibranch, a. and n.
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