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单词 ovotestis
释义

Definition of ovotestis in English:

ovotestis

nounPlural ovotestes ˌəʊvəʊˈtɛstɪsˌōvōˈtestəs
Zoology
  • An organ producing both ova and spermatozoa, especially in some gastropod molluscs.

    〔动〕(尤指腹足纲软体动物的)卵精巢;卵睾

    Example sentencesExamples
    • Some intersexed people have XX chromosomes everywhere except the ovotestes, which have XY chromosomes, or vice versa.
    • Ordinarily, these fish develop ovotestes, gonads that make both eggs and sperm.
    • When not gravid, eggs lining the ovotestes are readily seen through the carapace.
    • Fish were scored as intersexes when at least one of the gonads was an ovotestis or when one ovary and one testis were observed simultaneously.
    • Today, ‘true hermaphroditism’ - cases in which an individual has one or more ovotestes - is considered ‘extremely rare’, but it is hard to know how many cases go undiagnosed.

Origin

Late 19th century: from ovum + testis.

Definition of ovotestis in US English:

ovotestis

nounˌōvōˈtestəs
Zoology
  • An organ producing both ova and spermatozoa, as in some gastropod mollusks.

    〔动〕(尤指腹足纲软体动物的)卵精巢;卵睾

    Example sentencesExamples
    • Today, ‘true hermaphroditism’ - cases in which an individual has one or more ovotestes - is considered ‘extremely rare’, but it is hard to know how many cases go undiagnosed.
    • Fish were scored as intersexes when at least one of the gonads was an ovotestis or when one ovary and one testis were observed simultaneously.
    • When not gravid, eggs lining the ovotestes are readily seen through the carapace.
    • Some intersexed people have XX chromosomes everywhere except the ovotestes, which have XY chromosomes, or vice versa.
    • Ordinarily, these fish develop ovotestes, gonads that make both eggs and sperm.

Origin

Late 19th century: from ovum + testis.

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更新时间:2024/12/27 5:29:07