ALL meanings of root hair
root hair
R r - noun root hair an elongated tubular extension of an epidermal cell of a root, serving to absorb water and minerals from the soil. 1
- noun root hair any of the hollow hairlike outgrowths of the outer cells of a root, just behind the tip, that absorb water and salts from the soil 0
- noun root hair any of the thin-walled, hairlike tubular outgrowths from a growing root, which serve to absorb water and minerals from the soil 0