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单词 phloem
释义

Definition of phloem in English:

phloem

noun ˈfləʊɛmˈfloʊˌɛm
mass nounBotany
  • The vascular tissue in plants which conducts sugars and other metabolic products downwards from the leaves.

    〔植〕韧皮部

    Example sentencesExamples
    • For the stem, the outermost green tissue, including both phloem and cambium were estimated.
    • The conducting tissues within the vascular bundles are the xylem and phloem.
    • Formation of phloem and early xylem was directly related to fruitlet size.
    • Subsequently, this cambium produces both wound xylem and wound phloem and thus contributes to further thickening.
    • Root tissue samples are hereafter referred to as periderm, phloem and xylem.

Origin

Late 19th century: from Greek phloos 'bark' + the passive suffix -ēma.

Definition of phloem in US English:

phloem

nounˈflōˌemˈfloʊˌɛm
Botany
  • The vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.

    〔植〕韧皮部

    Example sentencesExamples
    • Root tissue samples are hereafter referred to as periderm, phloem and xylem.
    • Formation of phloem and early xylem was directly related to fruitlet size.
    • Subsequently, this cambium produces both wound xylem and wound phloem and thus contributes to further thickening.
    • For the stem, the outermost green tissue, including both phloem and cambium were estimated.
    • The conducting tissues within the vascular bundles are the xylem and phloem.

Origin

Late 19th century: from Greek phloos ‘bark’ + the passive suffix -ēma.

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更新时间:2024/11/8 22:18:41