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root hair

/ˈruːt hɛər/

Traduction: Fine excroissance filiforme à la surface d'une racine de plante, qui absorbe l'eau et les sels minéraux du sol.

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/ˈruːt hɛər/C1formalscientific
  • frFine excroissance filiforme à la surface d'une racine de plante, qui absorbe l'eau et les sels minéraux du sol.
  1. Plant root structureB2formal

    A thin, hair-like outgrowth from the root of a plant that absorbs water and minerals from the soil.

    frpoil absorbant

    • Root hairs increase the surface area of the root for better absorption.
    • The plant's root hairs take up water and nutrients from the soil.
    • Under a microscope, root hairs appear as tiny extensions of the root cells.