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
Keep scrolling for more
Test Your Vocabulary
February 2021 Words of the Day Quiz
-
- Which is a synonym of perdure?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share root hair
Time Traveler for root hair
The first known use of root hair was in 1841
See more words from the same year