ametabolicadj.

Brit.

/ˌeɪmɛtəˈbɒlɪk/,

/əˌmɛtəˈbɒlɪk/,

/ˌamɛtəˈbɒlɪk/, U.S.

/ˌeɪˌmɛdəˈbɑlɪk/,

/ˌæˌmɛdəˈbɑlɪk/,

/əˌmɛdəˈbɑlɪk/

Origin: Formed within English, by derivation. Etymons: a- prefix⁶, metabolic adj.

Etymology: < a- prefix⁶ + metabolic adj. In sense 1 after Ametabola n. Compare earlier ametabolian adj., ametabolous adj.

1. Zoology. That does not undergo or exhibit metamorphosis (metamorphosis n. 3a); = ametabolous adj. Cf. ametabolian adj. Now somewhat rare.

ΘΚΠ

the world > animals > animal body > [adjective] > having many shapes > not undergoing metamorphosis

ametabolic1844

the world > animals > invertebrates > phylum Arthropoda > class Insecta > group Ametabola > [adjective]

ametabolous1828

ametabolian1840

ametabolic1844

homomorphous1854

homomorphic1874

1844 Philos. Trans. (Royal Soc.) 134 293 Reproduction of lost parts takes place in the metabolic as well as in the ametabolic Articulata.

1870 H. A. Nicholson Man. Zool. I. 214 Ametabolic Insects.—These pass through no metamorphosis, and, also, in the mature condition, are destitute of wings.

1919 W. Lochhead Class Bk. Econ. Entomol. 33 The Thysanurans and Collembolans are ametabolic.

2004 J. B. Coupland & G. M. Barker in G. M. Barker Nat. Enemies Terrestr. Molluscs iii. 105 These phorids have lost their larval and pupal stages and become ametabolic.

2. Biology. Exhibiting or characterized by a temporary absence of metabolic activity.

ΚΠ

1959 Proc. Royal Soc. B. 150 166 The state of ametabolic latent life, or cryptobiosis.

1972 Teratology 6 96/1 The bacterial spore is an ametabolic cell which is structurally, physiologically, and chemically very different from the parent cell.

2012 B. Sattler et al. in E. M. Bell Life at Extremes viii. 148/1 In this ametabolic dry state these animals [sc. tardigrades] show no visible signs of life, but become active again if rehydrated.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021).

单词	ametabolic
释义	ametabolicadj. Brit. /ˌeɪmɛtəˈbɒlɪk/, /əˌmɛtəˈbɒlɪk/, /ˌamɛtəˈbɒlɪk/, U.S. /ˌeɪˌmɛdəˈbɑlɪk/, /ˌæˌmɛdəˈbɑlɪk/, /əˌmɛdəˈbɑlɪk/ Origin: Formed within English, by derivation. Etymons: a- prefix⁶, metabolic adj. Etymology: < a- prefix⁶ + metabolic adj. In sense 1 after Ametabola n. Compare earlier ametabolian adj., ametabolous adj. 1. Zoology. That does not undergo or exhibit metamorphosis (metamorphosis n. 3a); = ametabolous adj. Cf. ametabolian adj. Now somewhat rare. ΘΚΠ the world > animals > animal body > [adjective] > having many shapes > not undergoing metamorphosis ametabolic1844 the world > animals > invertebrates > phylum Arthropoda > class Insecta > group Ametabola > [adjective] ametabolous1828 ametabolian1840 ametabolic1844 homomorphous1854 homomorphic1874 1844 Philos. Trans. (Royal Soc.) 134 293 Reproduction of lost parts takes place in the metabolic as well as in the ametabolic Articulata. 1870 H. A. Nicholson Man. Zool. I. 214 Ametabolic Insects.—These pass through no metamorphosis, and, also, in the mature condition, are destitute of wings. 1919 W. Lochhead Class Bk. Econ. Entomol. 33 The Thysanurans and Collembolans are ametabolic. 2004 J. B. Coupland & G. M. Barker in G. M. Barker Nat. Enemies Terrestr. Molluscs iii. 105 These phorids have lost their larval and pupal stages and become ametabolic. 2. Biology. Exhibiting or characterized by a temporary absence of metabolic activity. ΚΠ 1959 Proc. Royal Soc. B. 150 166 The state of ametabolic latent life, or cryptobiosis. 1972 Teratology 6 96/1 The bacterial spore is an ametabolic cell which is structurally, physiologically, and chemically very different from the parent cell. 2012 B. Sattler et al. in E. M. Bell Life at Extremes viii. 148/1 In this ametabolic dry state these animals [sc. tardigrades] show no visible signs of life, but become active again if rehydrated. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021). < adj.1844
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