1
: a perennial herb (Lachnanthes caroliniana synonym L. tinctoria) of the eastern U.S. whose red root is the source of a dye
2
3
4
: a pigweed (Amaranthus retroflexus) that bears greenish flowers in dense spikes with bracts almost twice as long as the sepals

Examples of redroot in a Sentence

Recent Examples on the Web
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Farm life often requires rising with the sun, but chores, whether pulling redroot weeds or tending sheep, usually conclude by lunch. — Michael Snyder, New York Times, 17 Nov. 2022

Word History

First Known Use

1709, in the meaning defined at sense 2

Time Traveler
The first known use of redroot was in 1709

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Cite this Entry

“Redroot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redroot. Accessed 1 Oct. 2026.

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