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单词 perennibranch
释义

perennibranchn.adj.

Brit. /pəˈrɛnɪbraŋk/, U.S. /pəˈrɛnəˌbræŋk/
Origin: A borrowing from Latin, combined with an English element. Etymons: Latin perennis , -branch comb. form.
Etymology: < classical Latin perennis (see perennial adj.) + -branch comb. form, after perennibranchiate adj., perennibranchiate n. Compare French pérennibranche (1868 in Littré).
Zoology. Now rare.
A. n.
= perennibranchiate n.
ΘΚΠ
the world > animals > amphibians > order Urodela or Caudata > [noun] > member of
amphipneust1831
urodele1842
perennibranchiate1848
spring-keeper1859
urodelan1872
perennibranch1878
1878 Philos. Trans. 1877 (Royal Soc.) 167 561 I have the more carefully gone into the details of this stage because of its morphological interest, as being one good illustration of a perennibranch.
1965 B. E. Freeman tr. A. Vandel Biospeleol. xxvi. 438 Reduction of the eye of ‘perennibranchs’ is not related to cavernicolous life but to their neotenous state.
1976 Amer. Naturalist 110 669 There are no known cases or postulated cases of troglobitic perennibranchs reinvading the surrounding outside world.
B. adj.
= perennibranchiate adj.
ΘΚΠ
the world > animals > amphibians > order Urodela or Caudata > [adjective] > having permanent gills
perennibranchiate1834
perennibranch1888
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 404 In the perennibranch Urodela [the gills] are retained.
1987 Ophthalmic Res. 19 309 The Proteus anguinus L. is a blind cave perennibranch amphibian.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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n.adj.1878
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