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单词 neoteny
释义

Definition of neoteny in English:

neoteny

noun niːˈɒt(ə)niniˈɑt(ə)ni
mass nounZoology
  • 1The retention of juvenile features in the adult animal.

    〔动〕幼态延续。亦称PAEDOMORPHOSIS

    Also called paedomorphosis
    Example sentencesExamples
    • This is a classic example of an evolutionary phenomenon known as neoteny - the retention of larval or juvenile features in mature adults.
    • Among early codiacrinids adaptive forms evolved initially through both neoteny and progenesis.
    • This combination of characters is best interpreted as evolution through neoteny.
    • In fact Neo, as he has been named, suffers from a condition known as neoteny, where juvenile characteristics, like gills, are retained into adulthood.
    • Some species (for example, the axolotl) display neoteny - that is, the larval features persist into sexual maturity.
    1. 1.1 The sexual maturity of an animal while it is still in a mainly larval state, as in the axolotl.
      幼期性熟。亦称PAEDOGENESIS
      Also called paedogenesis
      Example sentencesExamples
      • Facultative neoteny also occurs in some species of true salamanders.
      • The acquisition of sexual maturity by an animal while still in the larval stage is a process that goes under the name neoteny.

Derivatives

  • neotenic

  • adjective niːəˈtɛnɪk
    Zoology
    • Direct-developing and normal biphasic frogs have slightly larger genomes, followed by biphasic, then direct-developing, and finally facultatively and then obligately neotenic salamanders.
      Example sentencesExamples
      • This certainly appears to be the case in neotenic salamanders, for example.
      • However, the young man can take advantage of the fact that older men are also of the generation before, who are less neotenic and look more like apes.
      • Humans are neotenic apes, ostriches are neotenic birds; we retain useful infantile characteristics into adulthood.
      • Sermonti therefore argues that neotenic organisms - in which juvenile traits persist into adulthood, e.g. gills in adult salamanders - must be archaic, because their features appear earlier in development.
  • neotenous

  • adjective
    Zoology
    • The literature suggest that the frequency of neotenous newts in a population could be as low as one in 1, 500.
      Example sentencesExamples
      • The authors' conclusion was that ‘humans make poor neotenous Neandertals,’ according to Williams.
      • It is unclear if other species of Rugiloricus also have this parthenogenic life cycle, but there is some evidence that both R. carolinensis and R. cauliculus may also form neotenous larvae.
      • Reisinger had suggested in 1960 that Xenoturbella might be derived from a neotenous deuterostome larva based on features of the nervous system, the enteropneust-like epidermis and the spermatozoa.
      • Thomas suggested that the noetiid ligament evolved from a ligament with outer chevrons only, as in Anadara antiquata, or the neotenous ligament of limopsids.

Origin

Late 19th century: from German Neotenie, from Greek neos 'new' (in the sense 'juvenile') + teinein 'extend'.

Definition of neoteny in US English:

neoteny

nounnēˈät(ə)nēniˈɑt(ə)ni
Zoology
  • 1The retention of juvenile features in the adult animal.

    〔动〕幼态延续。亦称PAEDOMORPHOSIS

    Also called pedomorphosis
    Example sentencesExamples
    • Among early codiacrinids adaptive forms evolved initially through both neoteny and progenesis.
    • This combination of characters is best interpreted as evolution through neoteny.
    • In fact Neo, as he has been named, suffers from a condition known as neoteny, where juvenile characteristics, like gills, are retained into adulthood.
    • Some species (for example, the axolotl) display neoteny - that is, the larval features persist into sexual maturity.
    • This is a classic example of an evolutionary phenomenon known as neoteny - the retention of larval or juvenile features in mature adults.
    1. 1.1 The sexual maturity of an animal while it is still in a mainly larval state, as in the axolotl.
      幼期性熟。亦称PAEDOGENESIS
      Also called pedogenesis
      Example sentencesExamples
      • The acquisition of sexual maturity by an animal while still in the larval stage is a process that goes under the name neoteny.
      • Facultative neoteny also occurs in some species of true salamanders.

Origin

Late 19th century: from German Neotenie, from Greek neos ‘new’ (in the sense ‘juvenile’) + teinein ‘extend’.

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更新时间:2024/10/19 10:18:34