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root hair Syllabification: root hair
Pronunciation: /ro͞ot/ /ro͝ot he(ə)r/

Definition of root hair in English:


Each of a large number of elongated microscopic outgrowths from the outer layer of cells in a root, absorbing moisture and nutrients from the soil.
Example sentences
  • Phosphorus deficiency produced the largest increase in root hair density, and the biggest decrease in root hair inequality.
  • In the nutrient-rich area around the root hairs, microscopic bacteria and fungi feed and multiply.
  • The larvae feed on root hairs, restricting nutrient and moisture uptake by the plant.
Definition of root hair in:
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