lady's thumb

noun

: a widely distributed weedy annual herb (Polygonum persicaria) of the buckwheat family that has large lanceolate leaves often with a blackish blotch suggesting a thumbprint

Word History

First Known Use

1820, in the meaning defined above

Time Traveler
The first known use of lady's thumb was in 1820

Dictionary Entries Near lady's thumb

lady's-thimble

lady's thumb

lady's-tobacco

See More Nearby Entries 

Cite this Entry

“Lady's thumb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lady%27s%20thumb. Accessed 26 Nov. 2024.

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