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词汇 secondary thickening
释义

Definition of secondary thickening in English:

secondary thickening

noun
mass nounBotany
  • (in the stem or root of a woody plant) the increase in girth resulting from the formation of new woody tissue by the cambium.

    〔植〕(木本植物的茎或根的)次生加厚

    Example sentencesExamples
    • This seems to reduce extension growth at a whole plant level but to locally stimulate secondary thickening.
    • This storage organ displays an anomalous form of secondary thickening from a series of supernumerary cambia arranged in concentric rings.
    • In dicots the largest genomes are typically in herbaceous perennials in which turgor, rather than secondary thickening, plays a major skeletal role.
    • Jin and Copper noted that the comb structure originated from the secondary thickening layer and was commonly buried in this layer.
    • Instead, the callus is derived from the outer layers of the xylem that have not yet undergone secondary thickening.

Definition of secondary thickening in US English:

secondary thickening

noun
Botany
  • (in the stem or root of a woody plant) the increase in girth resulting from the formation of new woody tissue by the cambium.

    〔植〕(木本植物的茎或根的)次生加厚

    Example sentencesExamples
    • This seems to reduce extension growth at a whole plant level but to locally stimulate secondary thickening.
    • Jin and Copper noted that the comb structure originated from the secondary thickening layer and was commonly buried in this layer.
    • In dicots the largest genomes are typically in herbaceous perennials in which turgor, rather than secondary thickening, plays a major skeletal role.
    • Instead, the callus is derived from the outer layers of the xylem that have not yet undergone secondary thickening.
    • This storage organ displays an anomalous form of secondary thickening from a series of supernumerary cambia arranged in concentric rings.
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