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词汇 extrorse
释义

Definition of extrorse in English:

extrorse

adjective ɛksˈtrɔːs
Zoology Botany
  • 1Turned outwards.

    〔植,动〕外向的;向边缘的。INTRORSE 的反义词

    The opposite of introrse
    Example sentencesExamples
    • These pollen sacs can face outward, in which case the stamens are called extrorse (eg, Ranunculaceae), or inward, in which case the stamens are called introrse.
    • These pitchers are extrorse (face outward), and according to habitat can be red, green, yellow, or orange, and are as long as 21 cm.
    1. 1.1 (of anthers) releasing their pollen on the outside of the flower.
      (花药)外向的
      Example sentencesExamples
      • On the other hand, there is a correlation between extrorse anthers and short filaments:
      • Anthers are juxtaposed, included in the corolla, extrorse and open longitudinally.
      • Extrorse anthers are somewhat concentrated in primitive dicots and primitive monocots and are rare in more advanced groups.

Origin

Mid 19th century: from late Latin extrorsus 'outwards' (adverb).

Definition of extrorse in US English:

extrorse

adjective
Botany Zoology
  • 1Turned outward.

    〔植,动〕外向的;向边缘的。INTRORSE 的反义词

    The opposite of introrse
    Example sentencesExamples
    • These pollen sacs can face outward, in which case the stamens are called extrorse (eg, Ranunculaceae), or inward, in which case the stamens are called introrse.
    • These pitchers are extrorse (face outward), and according to habitat can be red, green, yellow, or orange, and are as long as 21 cm.
    1. 1.1 (of anthers) releasing their pollen on the outside of the flower.
      (花药)外向的
      Example sentencesExamples
      • Anthers are juxtaposed, included in the corolla, extrorse and open longitudinally.
      • Extrorse anthers are somewhat concentrated in primitive dicots and primitive monocots and are rare in more advanced groups.
      • On the other hand, there is a correlation between extrorse anthers and short filaments:

Origin

Mid 19th century: from late Latin extrorsus ‘outwards’ (adverb).

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