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词汇 unisexual
释义

Definition of unisexual in English:

unisexual

adjective juːnɪˈsɛkʃʊəlˌjunəˈsɛkʃ(əw)əl
  • 1(of an organism) either male or female; not hermaphrodite.

    (生物)单性的,雌雄异体的

    Example sentencesExamples
    • As is the condition in other unisexual vertebrates, the silver crucian carp probably has a hybridization origin.
    • Various species may be unisexual, hermaphroditic, or have separate sexes.
    • When H. frenatus arrives on an island, the population of the unisexual species plummets.
    • This means that the unisexual females are actually parasitizing bisexual males of these other species.
    • Both individuals and gametes were unisexual, and self-fertilization was allowed.
    1. 1.1Botany (of a flower) having either stamens or pistils but not both.
      〔植〕(花)单性的
      Example sentencesExamples
      • Sexually the species are structurally gynodioecious, but there is a strong tendency towards dioecism with apparently bisexual flowers often being functionally unisexual.
      • The genus has reduced unisexual flowers grouped into characteristic pseudanthia called cyathia.
      • Plants are characterized as having unisexual flowers and dichotomously forked leaves arranged in crowded whorls.
      • They have unisexual flowers, are wind-pollinated, and apparently have a very short and inconspicuous flowering time so that the presence of flowers is easily overlooked.
      • The genera of Atripliceae, as the tribe is traditionally defined, have flowers that are usually unisexual and enclosed by well-developed bracteoles.
  • 2Biology
    Involving or repesenting only one sex.

    a single parthenogenetic female reaching a favourable new habitat can start a new unisexual population

Derivatives

  • unisexuality

  • noun juːnɪsɛkʃʊˈalɪti
    • Not all species have been fully investigated, but Millener has estimated that about 25% exhibit unisexuality in New Zealand compared with only 8% in the British flora.
      Example sentencesExamples
      • It is likely that he achieved just the effect he was after here, as audiences are forced to confront in full force not homosexuality but unisexuality.
      • There are also ‘alternative mating systems,’ which include alternative male strategies, hermaphroditism, and unisexuality.
      • Rather than being a viewpoint in support of homosexuality, it's more like an argument favoring an androgynous unisexuality that even most gender benders would find unreflective of their lives.
      • A major emphasis has been to evaluate the functional significance of interspecific hybridization, unisexuality and polyploidy in the evolutionary biology of these unusual fish.
  • unisexually

  • adverb
    • Thus, whereas the parental species reproduce sexually, the hybrid reproduces unisexually due to the result of meiotic drive, but still depends on a sexual hang-up.
      Example sentencesExamples
      • No difference in granuloma formation between naive and P. berghei-immunized animals and between unisexually and bisexually S. mansoni-infected mice was observed.
      • With the first guy I mean it unisexually, and the second… femalely.
      • He has a feminine palette, but the shirt was sold unisexually.
      • But scientists at Duke's Howard Hughes Medical Institute discovered that the fungus reproduces both unisexually and by releasing reproductive cells in a process called ‘fruiting’ that include half the number of chromosomes needed for reproduction, similar to the way a human egg or sperm has half the chromosomes needed for reproduction.

Rhymes

asexual, bisexual, heterosexual, homosexual, psychosexual, sexual, transsexual

Definition of unisexual in US English:

unisexual

adjectiveˌyo͞onəˈsekSH(əw)əlˌjunəˈsɛkʃ(əw)əl
  • 1(of an organism) either male or female; not hermaphrodite.

    (生物)单性的,雌雄异体的

    Example sentencesExamples
    • Both individuals and gametes were unisexual, and self-fertilization was allowed.
    • When H. frenatus arrives on an island, the population of the unisexual species plummets.
    • As is the condition in other unisexual vertebrates, the silver crucian carp probably has a hybridization origin.
    • Various species may be unisexual, hermaphroditic, or have separate sexes.
    • This means that the unisexual females are actually parasitizing bisexual males of these other species.
    1. 1.1Botany (of a flower) having either stamens or pistils but not both.
      〔植〕(花)单性的
      Example sentencesExamples
      • Plants are characterized as having unisexual flowers and dichotomously forked leaves arranged in crowded whorls.
      • The genus has reduced unisexual flowers grouped into characteristic pseudanthia called cyathia.
      • Sexually the species are structurally gynodioecious, but there is a strong tendency towards dioecism with apparently bisexual flowers often being functionally unisexual.
      • The genera of Atripliceae, as the tribe is traditionally defined, have flowers that are usually unisexual and enclosed by well-developed bracteoles.
      • They have unisexual flowers, are wind-pollinated, and apparently have a very short and inconspicuous flowering time so that the presence of flowers is easily overlooked.
  • 2Biology
    Involving or repesenting only one sex.

    a single parthenogenetic female reaching a favourable new habitat can start a new unisexual population
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