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词汇 hectocotylus
释义

Definition of hectocotylus in English:

hectocotylus

nounPlural hectocotyliˌhɛktə(ʊ)ˈkɒtɪləsˌhektōˈkäd(ə)ləs
Zoology
  • A modified arm used by male octopuses and some other cephalopods to transfer sperm to the female.

    〔动〕交接腕,化茎腕

    Example sentencesExamples
    • In some cephalopods, the end of the hectocotylus snaps off and remains imbedded in the female.
    • The hectocotylus is used to deliver the spermatophores (sperm-filled sacs) to the female during mating.
    • In some species, the specialized arm tip may be pinched off and left in the female's mantle cavity: this is known as the hectocotylus arm.

Origin

Mid 19th century: modern Latin, from hecto- 'hundred' + Greek kotulē 'hollow thing', a name given by Cuvier to what he mistakenly took to be a genus of parasitic worms.

Definition of hectocotylus in US English:

hectocotylus

nounˌhektōˈkäd(ə)ləs
Zoology
  • A modified arm used by male octopuses and some other cephalopods to transfer sperm to the female.

    〔动〕交接腕,化茎腕

    Example sentencesExamples
    • In some cephalopods, the end of the hectocotylus snaps off and remains imbedded in the female.
    • The hectocotylus is used to deliver the spermatophores (sperm-filled sacs) to the female during mating.
    • In some species, the specialized arm tip may be pinched off and left in the female's mantle cavity: this is known as the hectocotylus arm.

Origin

Mid 19th century: modern Latin, from hecto- ‘hundred’ + Greek kotulē ‘hollow thing’, a name given by Cuvier to what he mistakenly took to be a genus of parasitic worms.

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