V2EX radicle

Radicle

释义 Definition

radicle(名词)主要指胚根:植物种子胚中最先长出的部分,发育成。(在语言学中也可指“词根/部首”等义项,但此处以最常见的植物学含义为主。)

发音 Pronunciation

/rdkl/

例句 Examples

The radicle emerges first when a seed starts to germinate.
种子开始发芽时,最先长出来的是胚根。

Once the seed coat splits, the radicle pushes downward into the soil, anchoring the seedling and beginning water absorption.
当种皮裂开后,胚根会向下钻入土壤,固定幼苗并开始吸收水分。

词源 Etymology

radicle 来自拉丁语 radicula,意为“小根”,是 radix(根)的指小形式。该词进入英语后,常用于植物学,专指“胚的根部/胚根”,强调“最初形成根的那一部分”。

相关词 Related Words

文学作品 Literary Works

  • Charles DarwinThe Power of Movement in Plants》:讨论植物器官(包括胚根)在生长过程中的运动与反应。
  • Vernon A. Vance 等植物生理学与种子学经典教材(如种子萌发章节)中常出现 radicle,用于描述胚根突破种皮并向地生长的过程。
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