: a deep-rooted leguminous perennial plant (Medicago sativa) of southwestern Asia that is widely grown for hay and forage

Examples of alfalfa in a Sentence

Recent Examples on the Web
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About three-fourths of the water taken from it flows to farmland — about 5 million acres of it — producing alfalfa for cattle, lettuce, broccoli and other crops. — Ian James, Los Angeles Times, 16 Oct. 2026 Rubisco, the most abundant form of protein on the planet, comes from ubiquitous alfalfa leaves. — Rachel Sacks, Time, 15 Oct. 2026 The next morning the deer would be coming back into the woods to bed from alfalfa to the north, and the wind would be out of the west. — Michael Hanback, Outdoor Life, 14 Oct. 2026 The plan would permanently preserve 374 acres of farmland owned by Bullseye Farms, which currently grows sunflowers, cucumbers, tomatoes and alfalfa. — Daniel Lempres, Sacbee.com, 8 Oct. 2026 See All Example Sentences for alfalfa

Word History

Etymology

Spanish, modification of Arabic dialect al-faṣfaṣa the alfalfa

First Known Use

1791, in the meaning defined above

Time Traveler
The first known use of alfalfa was in 1791

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Cite this Entry

“Alfalfa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alfalfa. Accessed 22 Oct. 2026.

Kids Definition

alfalfa

noun
: a deep-rooted southwest Asian plant of the legume family with purple flowers and leaves like clover that is widely grown for hay and forage

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