: a filamentous extension of an epidermal cell near the tip of a rootlet that functions in absorption of water and minerals — see seedling illustration
Examples of root hair in a Sentence
Recent Examples on the WebOnce the tree roots reach the edge, the leading root hairs grow through but then are pinched by the fabric.
Adrian Higgins, idahostatesman, 20 Dec. 2017 When your plant is transplanted, it can be stressed if there is damage to root hairs, as this will impede water absorption until the plant can replace them.
Rita Perwich, sandiegouniontribune.com, 5 Oct. 2017
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'root hair.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.