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单词 nastic
释义

Definition of nastic in English:

nastic

adjective ˈnastɪkˈnastik
Botany
  • (of the movement of plant parts) caused by an external stimulus but unaffected in direction by it.

    〔植〕(植物器官运动)感性的,倾动的

    Example sentencesExamples
    • In biology, nastic refers to the natural movement of plants in response to changes in their environment, such as plants that track sunlight or that stiffen when watered.
    • They may have a role in turgor regulation in response to salt and hyper-osmotic stresses, in nastic and gravitropic movements, in stomatal closure and in pollen tube elongation.

Origin

Early 20th century: from Greek nastos 'squeezed together' (from nassein 'to press') + -ic.

Definition of nastic in US English:

nastic

adjectiveˈnastik
Botany
  • (of the movement of plant parts) caused by an external stimulus but unaffected in direction by it.

    〔植〕(植物器官运动)感性的,倾动的

    Example sentencesExamples
    • They may have a role in turgor regulation in response to salt and hyper-osmotic stresses, in nastic and gravitropic movements, in stomatal closure and in pollen tube elongation.
    • In biology, nastic refers to the natural movement of plants in response to changes in their environment, such as plants that track sunlight or that stiffen when watered.

Origin

Early 20th century: from Greek nastos ‘squeezed together’ (from nassein ‘to press’) + -ic.

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更新时间:2024/11/8 20:21:43