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单词 non-mammalian
释义

non-mammalianadj.n.

Brit. /ˌnɒnməˈmeɪlɪən/, /ˌnɒnmaˈmeɪlɪən/, U.S. /ˌnɑnməˈmeɪlj(ə)n/, /ˌnɑnməˈmeɪliən/
Origin: Formed within English, by derivation. Etymons: non- prefix, mammalian adj.
Etymology: < non- prefix + mammalian adj.
Chiefly Biology.
A. adj.
Not mammalian.
ΚΠ
1880 G. Gordon in Proc. Zool. Soc. 14 Dec. 652 Those groups which approach the non-mammalian Vertebrata most closely.
1904 H. Smith Williams Hist. Sci. vi. 172 The exact branch by which our reptilian or amphibian non-mammalian ancestor became the most primitive of mammals is still hidden in unexplored recesses of early strata.
1932 E. Allen et al. Sex & Internal Secretions vii. (heading) 182 Testicular activity in non-mammalian vertebrates.
1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) xv. 856 In most nonmammalian eggs, the developmental program begins with a series of rapid cell divisions, or cleavages, in which the total mass of the embryo does not increase.
B. n.
1. A person who holds the view that a whale is not a mammal.Apparently an isolated use.
ΚΠ
1953 Philos. Rev. 62 423 Let us consider a ficticious historical illustration. At issue was the status of the whale. Was it mammal or fish?.. Biologists split into two camps over the issue; the Mammalians and the Nonmammalians.
2. An animal, esp. a vertebrate, that is not a mammal.
ΚΠ
1970 Perceptual & Motor Skills 31 602 With sensory loss nonmammalians... exhibit a decrease in activity.
1977 Science 1 July 79 The apparent absence of these mechanisms in nonmammalians..supports the hypothesis that binocular vision and the attendant capacity for steropsis have been products of mammalian evolution.
1997 Compar. Biochem. & Physiol. 118 515 The pineal organ has been clearly implicated in the photoperiodic control of seasonal reproduction in several non-mammalians.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.n.1880
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