paedomorphosispedomorphosisn.

Brit.

/ˌpiːdə(ʊ)ˈmɔːfəsɪs/, U.S.

/ˌpɛdəˈmɔrfəsəs/,

/ˌpidəˈmɔrfəsəs/

Forms: 1900s– paedomorphosis, 1900s– pedomorphosis (chiefly U.S.).

Origin: Formed within English, by compounding. Etymons: paedo- comb. form, morphosis n.

Etymology: < paedo- comb. form + morphosis n. Compare earlier paedomorphic adj., paedomorphism n.

Biology.

The retention of juvenile or larval characteristics in a reproductively mature organism; esp. the appearance in an adult organism of the juvenile or larval characteristics of an ancestral form.See note s.v. neoteny n.

ΘΚΠ

the world > life > biology > biological processes > evolution > [noun] > morphogenesis > derivation or appearance of characters

acquired1794

neomorph1886

paedomorphism1892

neotenia1896

habitat form1902

caenogenesis1909

fetalization1922

paedomorphosis1922

hominization1953

synapomorphy1966

synapomorph1969

1922 W. Garstang in Jrnl. Linn. Soc.: Zool. 35 100 In other articles I propose to deal with the origin and significance of larval forms, and to draw attention to some further examples of the influence of larval characters upon adult organisation, to which I apply the term ‘Pædomorphosis’.

1940 Jrnl. Royal Anthropol. Inst. 70 16 The..skull, though adult, is comparable with infantile skulls of other races. Discussing this phenomenon, Professor Drennan attributes it to a process of ‘pedomorphosis’ or ‘neoteny’.

1978 Paleobiology 4 97/2 Neoteny also leads to paedomorphosis, but, by contrast with progenesis, it results from the relative deceleration of the development of somatic features.

1991 M. J. Mahoney Human Change Processes App. f 436 Neoteny is now the preferred term for paedomorphosis and refers not only to the retention of fetal, neonate-like, juvenile characteristics into adulthood, but also to the general slowing of developmental rates.

This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).

单词	paedomorphosis
释义	paedomorphosispedomorphosisn. Brit. /ˌpiːdə(ʊ)ˈmɔːfəsɪs/, U.S. /ˌpɛdəˈmɔrfəsəs/, /ˌpidəˈmɔrfəsəs/ Forms: 1900s– paedomorphosis, 1900s– pedomorphosis (chiefly U.S.). Origin: Formed within English, by compounding. Etymons: paedo- comb. form, morphosis n. Etymology: < paedo- comb. form + morphosis n. Compare earlier paedomorphic adj., paedomorphism n. Biology. The retention of juvenile or larval characteristics in a reproductively mature organism; esp. the appearance in an adult organism of the juvenile or larval characteristics of an ancestral form.See note s.v. neoteny n. ΘΚΠ the world > life > biology > biological processes > evolution > [noun] > morphogenesis > derivation or appearance of characters acquired1794 neomorph1886 paedomorphism1892 neotenia1896 habitat form1902 caenogenesis1909 fetalization1922 paedomorphosis1922 hominization1953 synapomorphy1966 synapomorph1969 1922 W. Garstang in Jrnl. Linn. Soc.: Zool. 35 100 In other articles I propose to deal with the origin and significance of larval forms, and to draw attention to some further examples of the influence of larval characters upon adult organisation, to which I apply the term ‘Pædomorphosis’. 1940 Jrnl. Royal Anthropol. Inst. 70 16 The..skull, though adult, is comparable with infantile skulls of other races. Discussing this phenomenon, Professor Drennan attributes it to a process of ‘pedomorphosis’ or ‘neoteny’. 1978 Paleobiology 4 97/2 Neoteny also leads to paedomorphosis, but, by contrast with progenesis, it results from the relative deceleration of the development of somatic features. 1991 M. J. Mahoney Human Change Processes App. f 436 Neoteny is now the preferred term for paedomorphosis and refers not only to the retention of fetal, neonate-like, juvenile characteristics into adulthood, but also to the general slowing of developmental rates. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < n.1922
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