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词汇 radicle
释义

Definition of radicle in English:

radicle

noun ˈradɪk(ə)lˈrædək(ə)l
Botany
  • 1The part of a plant embryo that develops into the primary root.

    〔植〕胚根

    Example sentencesExamples
    • Roots were determined to have protruded when the radicle had split the endosperm at which point it was clearly visible.
    • Each week, the leaves were lifted, and seeds with an emerged radicle were counted as germinated and removed from the flats.
    • The micropyle is the pore through which the radicle emerges during seed germination.
    • Of seeds that produced radicles, epicotyls emerged in 100% of them following 12 wk of cold stratification and subsequent movement to warmer temperatures.
    • A caryopsis was considered germinated when the radicle pierced the seed coat, approximately 10 h after the start of imbibition.
    Synonyms
    rhizome, rootstock, tuber, tap root, rootlet
    1. 1.1Anatomy A rootlike subdivision of a nerve or vein.
      〔剖〕(神经或血管的)小根,细根
      Example sentencesExamples
      • The parasite radicle then thickens to form a vascular connection - a haustorium - between the parasite and the host.

Derivatives

  • radicular

  • adjective rəˈdɪkjʊlərəˈdɪkjələr
    Anatomy
    • Affecting or relating to the root of a spinal nerve.

      low back pain accompanied with radicular pain
      Example sentencesExamples
      • Direct injection of fibrocartilage into these vessels during episodes of increased pressure, with retrograde travel into a radicular artery, may explain emboli seen in younger patients.
      • Also, Lagrimini et al. have shown that overexpression of an anionic peroxidase in roots results in a significant decrease in radicular system development and in enhanced plant wilting.
      • Finally, a neurovascular examination should be performed to rule out referred pain secondary to radicular symptoms or vascular causes.

Origin

Late 17th century: from Latin radicula, diminutive of radix, radic- 'root'.

Definition of radicle in US English:

radicle

nounˈradək(ə)lˈrædək(ə)l
Botany
  • 1The part of a plant embryo that develops into the primary root.

    〔植〕胚根

    Example sentencesExamples
    • Roots were determined to have protruded when the radicle had split the endosperm at which point it was clearly visible.
    • Of seeds that produced radicles, epicotyls emerged in 100% of them following 12 wk of cold stratification and subsequent movement to warmer temperatures.
    • A caryopsis was considered germinated when the radicle pierced the seed coat, approximately 10 h after the start of imbibition.
    • The micropyle is the pore through which the radicle emerges during seed germination.
    • Each week, the leaves were lifted, and seeds with an emerged radicle were counted as germinated and removed from the flats.
    Synonyms
    rhizome, rootstock, tuber, tap root, rootlet
    1. 1.1Anatomy A rootlike subdivision of a nerve or vein.
      〔剖〕(神经或血管的)小根,细根
      Example sentencesExamples
      • The parasite radicle then thickens to form a vascular connection - a haustorium - between the parasite and the host.

Origin

Late 17th century: from Latin radicula, diminutive of radix, radic- ‘root’.

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