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A thimble-shaped mass of cells that covers and protects the root tip.
1. (Botany) a hollow cone of loosely arranged cells that covers the growing tip of a root and protects it during its passage through the soil
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|Noun||1.||root cap - thimble-shaped mass of cells covering and protecting the growing tip of a root|
plant organ - a functional and structural unit of a plant or fungus
root - (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground