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单词 etiolated
释义

Definition of etiolated in English:

etiolated

adjective ˈiːtɪəˌleɪtɪdˈidiəˌleɪdəd
  • 1(of a plant) pale and drawn out due to a lack of light.

    etiolated leaf segments
    Example sentencesExamples
    • Exposure of etiolated cereal leaves to red light results in unrolling.
    • Small amounts of such products have been observed by other groups in protein samples from etiolated barley and wheat seedlings.
    • These plants continued to grow without light and developed new etiolated leaves.
    • Although expression of carotenoid genes does occur in etiolated plants, their synthesis is stimulated on transfer to light.
    • Flowering continues but decreases through at least three seasons without burning; in long unburned sites, plants are etiolated and flower rarely if at all.
    • It is found in leaves, etiolated tissues, seeds, roots, fruits, and tubers in the chloroplast as well as in the cytosol.
    Synonyms
    pale, pallid, ashen, white, white as a sheet, grey
  • 2Having lost vigour or substance; feeble.

    a tone of etiolated nostalgia
    Example sentencesExamples
    • Apart from an elongated waist which gave him the look of the etiolated shadow of a much taller man, he was not altogether bad looking.
    • He felt etiolated and unkempt.
    Synonyms
    feeble, weak, insipid, pallid, pale, wishy-washy, vapid, bland, poor, puny, flat, inadequate

Derivatives

  • etiolation

  • noun iːtɪəˈleɪʃ(ə)nˌidiəˈleɪʃ(ə)n
    • In an attempt to solve these questions, one fruitful approach has been the analysis of in situ absorbance and fluorescence spectra during etiolation.
      Example sentencesExamples
      • Surprisingly, the bulk of leaf tissue remained green and without visible etiolation under anoxia.
      • Robustness, based on above-ground biomass/seedling height, was used as an indicator of the sturdiness of seedlings and may be regarded as the inverse of etiolation.
      • It has been hypothesized that the distribution of glutamine biosynthesis in different cellular compartments may be associated with etiolation in seedlings.
      • Because of etiolation and necrosis, control seedlings were harvested after 90 days, the root systems washed with distilled water and plants dried at 60°C to constant weight.

Origin

Late 18th century: from etiolate + -ed2.

 
 

Definition of etiolated in US English:

etiolated

adjectiveˈēdēəˌlādədˈidiəˌleɪdəd
  • 1(of a plant) pale and drawn out due to a lack of light.

    etiolated mung bean seedlings
    Example sentencesExamples
    • Although expression of carotenoid genes does occur in etiolated plants, their synthesis is stimulated on transfer to light.
    • Flowering continues but decreases through at least three seasons without burning; in long unburned sites, plants are etiolated and flower rarely if at all.
    • Exposure of etiolated cereal leaves to red light results in unrolling.
    • Small amounts of such products have been observed by other groups in protein samples from etiolated barley and wheat seedlings.
    • These plants continued to grow without light and developed new etiolated leaves.
    • It is found in leaves, etiolated tissues, seeds, roots, fruits, and tubers in the chloroplast as well as in the cytosol.
    Synonyms
    pale, pallid, ashen, white, white as a sheet, grey
    1. 1.1 Having lost vigor or substance; feeble.
      a tone of etiolated nostalgia
      Example sentencesExamples
      • He felt etiolated and unkempt.
      • Apart from an elongated waist which gave him the look of the etiolated shadow of a much taller man, he was not altogether bad looking.
      Synonyms
      feeble, weak, insipid, pallid, pale, wishy-washy, vapid, bland, poor, puny, flat, inadequate

Origin

Late 18th century: from etiolate + -ed.

 
 
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更新时间:2024/12/24 21:18:52