neotenyn.

Brit.

/nɪˈɒtᵻni/,

/nɪˈɒtn̩i/, U.S.

/niˈɑtn̩i/

Origin: A borrowing from German. Etymon: German Neotenie.

Etymology: < German Neotenie (J. C. E. Kollman 1884, in Verhandl. der Naturforsch. Ges. in Basel 7 391) < ancient Greek νέος young (see neo- comb. form) + τείνειν to extend (see tone n.) + German -ie -y suffix³. Compare Italian neotenia (1885 or earlier), French néoténie (1903). Compare slightly earlier neotenia n., neotenic adj.

Biology.

The retention of juvenile characteristics in a (sexually) mature organism; esp. the appearance of ancestral juvenile characteristics in the adult stage of a descendant, spec. as an evolutionary process in which somatic development is retarded. Later also: the attainment of sexual maturity and reproductive capacity by an organism still in a larval (or other immature) stage of its life cycle.The distinction between retention of juvenile characteristics in an adult form and accelerated sexual maturity in a larval or juvenile form has not always been made, and may be difficult to establish in practice. The terms neoteny and paedogenesis have been applied to both processes, and paedomorphosis to the result of either. Cf. also progenesis n.

ΘΚΠ

the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > sexual organs > immaturity in adult life

neoteny1901

the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > sexual organs > sexual maturity in larval state

neoteny1962

1901 H. Gadow in Cambr. Nat. Hist. VIII. iii. 65 These cases of neoteny are therefore instances of more or less complete retardation, or of the retention of partially larval conditions.

1920 Conquest Apr. 278/2 Neoteny..here means the abnormal time-extension of youthful characters.

1932 J. S. Huxley Probl. Relative Growth vii. 237 It is clear that changes in rate-genes could as easily lead to the opposite of recapitulation as to recapitulation. Many examples of neoteny would fall under this head.

1943 Q. Rev. Biol. 18 154/2 The sexual conditions in the pelecypods are sometimes further complicated by the occurrence of neoteny, or juvenile sexuality.

1962 D. Nichols Echinoderms xiv. 178 An interesting embryological phenomenon known as neoteny, in which, by the acceleration of development of the gonads, an animal becomes sexually mature while still retaining the larval body form.

1965 New Scientist 14 Jan. 86/1 The retention of the puppy characteristic (neoteny) of floppy ears.

1971 J. Z. Young Introd. Study Man xxxiv. 479 Such a change, technically called neoteny (or paedomorphosis), has in fact occurred often in the course of the evolution of diverse animals.

1977 S. J. Gould Ontogeny & Phylogeny vi. 179 (note) We now restrict ‘neoteny’ to cases [of paedomorphosis] involving the retardation of somatic development.

1980 S. J. Gould Panda's Thumb (1982) ix. 97 Progressive juvenilization as an evolutionary phenomenon is called neoteny.

1991 N.Y. Times Mag. 22 Dec. 20/2 Through the process of neoteny a whole slew of new traits may be introduced very rapidly, thereby increasing the variation available for natural selection to act upon.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	neoteny
释义	neotenyn. Brit. /nɪˈɒtᵻni/, /nɪˈɒtn̩i/, U.S. /niˈɑtn̩i/ Origin: A borrowing from German. Etymon: German Neotenie. Etymology: < German Neotenie (J. C. E. Kollman 1884, in Verhandl. der Naturforsch. Ges. in Basel 7 391) < ancient Greek νέος young (see neo- comb. form) + τείνειν to extend (see tone n.) + German -ie -y suffix³. Compare Italian neotenia (1885 or earlier), French néoténie (1903). Compare slightly earlier neotenia n., neotenic adj. Biology. The retention of juvenile characteristics in a (sexually) mature organism; esp. the appearance of ancestral juvenile characteristics in the adult stage of a descendant, spec. as an evolutionary process in which somatic development is retarded. Later also: the attainment of sexual maturity and reproductive capacity by an organism still in a larval (or other immature) stage of its life cycle.The distinction between retention of juvenile characteristics in an adult form and accelerated sexual maturity in a larval or juvenile form has not always been made, and may be difficult to establish in practice. The terms neoteny and paedogenesis have been applied to both processes, and paedomorphosis to the result of either. Cf. also progenesis n. ΘΚΠ the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > sexual organs > immaturity in adult life neoteny1901 the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > sexual organs > sexual maturity in larval state neoteny1962 1901 H. Gadow in Cambr. Nat. Hist. VIII. iii. 65 These cases of neoteny are therefore instances of more or less complete retardation, or of the retention of partially larval conditions. 1920 Conquest Apr. 278/2 Neoteny..here means the abnormal time-extension of youthful characters. 1932 J. S. Huxley Probl. Relative Growth vii. 237 It is clear that changes in rate-genes could as easily lead to the opposite of recapitulation as to recapitulation. Many examples of neoteny would fall under this head. 1943 Q. Rev. Biol. 18 154/2 The sexual conditions in the pelecypods are sometimes further complicated by the occurrence of neoteny, or juvenile sexuality. 1962 D. Nichols Echinoderms xiv. 178 An interesting embryological phenomenon known as neoteny, in which, by the acceleration of development of the gonads, an animal becomes sexually mature while still retaining the larval body form. 1965 New Scientist 14 Jan. 86/1 The retention of the puppy characteristic (neoteny) of floppy ears. 1971 J. Z. Young Introd. Study Man xxxiv. 479 Such a change, technically called neoteny (or paedomorphosis), has in fact occurred often in the course of the evolution of diverse animals. 1977 S. J. Gould Ontogeny & Phylogeny vi. 179 (note) We now restrict ‘neoteny’ to cases [of paedomorphosis] involving the retardation of somatic development. 1980 S. J. Gould Panda's Thumb (1982) ix. 97 Progressive juvenilization as an evolutionary phenomenon is called neoteny. 1991 N.Y. Times Mag. 22 Dec. 20/2 Through the process of neoteny a whole slew of new traits may be introduced very rapidly, thereby increasing the variation available for natural selection to act upon. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1901
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