Definition of root hair
: a filamentous extension of an epidermal cell near the tip of a rootlet that functions in absorption of water and minerals — see seedling illustration
What's Trending Now
More Trending Words
Recent Examples of root hair from the Web
-
Once the tree roots reach the edge, the leading root hairs grow through but then are pinched by the fabric.
-
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.
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.
First Known Use of root hair
1841
Learn More about root hair
-
See words that rhyme with root hair Britannica.com: Encyclopedia article about root hair
Seen and Heard
What made you want to look up root hair? Please tell us where you read or heard it (including the quote, if possible).
