pig·​weed | \ ˈpig-ˌwēd How to pronounce pigweed (audio) \

Definition of pigweed

: any of various vigorous weedy plants especially of the goosefoot or amaranth families

Examples of pigweed in a Sentence

Recent Examples on the Web The Palmer amaranth, a type of pigweed that was originally native to the deserts of Mexico and the southwestern U.S., can out-compete most commercial crops, is highly resistant to common herbicides and can be toxic to livestock. Gregory B. Hladky, courant.com, "Connecticut crops threatened by new invasive herbicide-resistant weed," 12 Aug. 2014 Terrance Hurley Department of Applied Economics University of Minnesota Adler’s characterization of ragweed and pigweed (Palmer amaranth) as monsters is plain silly. The Editors, Scientific American, "Readers Respond to "The Growing Menace from Superweeds" and Other Articles," 1 Sep. 2011 The scientists are testing the machine on a range of species, including pigweed. Brooke Borel, Scientific American, "Weeds Are Winning the War against Herbicide Resistance," 18 June 2018 Weed scientist Muthu Bagavathiannian had no trouble finding herbicide-resistant pigweed, which can produce up to a million seeds per plant compared to cotton’s 200 to 300. Lynn Brezosky, San Antonio Express-News, "A&M cotton research could open new front in war on weeds," 5 July 2018 Herbicide resistance can work in many different ways; take glyphosate-resistant Palmer amaranth (Amaranthus palmeri), or pigweed, for example. Brooke Borel, Scientific American, "Weeds Are Winning the War against Herbicide Resistance," 18 June 2018 Peppers + Pigweed Leafminers preferred both pigweed and ragweed to pepper plants in a study at the Coastal Plains Experiment Station in Tifton, Georgia. The Editors Of Organic Life, Good Housekeeping, "26 Plants You Should Always Grow Side-By-Side," 3 Feb. 2017 For five decades, dicamba was used to kill pests such as pigweed at the beginning of the soybean and cotton planting season. Paul Feldman, kansascity, "High-stakes battle over dicamba pesticide pits farmer against farmer | The Kansas City Star," 3 May 2018 Spiked in the middle of those 17 years of mediocre-to-terrible baseball, 1993 stands out like a single sunflower in an acre of pigweed. Mike Sielski, Philly.com, "Darren Daulton's death a reminder of how special '93 Phillies really were | Mike Sielski," 8 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pigweed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pigweed

circa 1801, in the meaning defined above

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Time Traveler for pigweed

Time Traveler

The first known use of pigweed was circa 1801

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Statistics for pigweed

Last Updated

4 Dec 2019

Cite this Entry

“Pigweed.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/pigweed. Accessed 14 December 2019.

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More Definitions for pigweed


pig·​weed | \ ˈpig-ˌwēd How to pronounce pigweed (audio) \

Medical Definition of pigweed

: any of several plants of the genus Amaranthus (as A. retroflexus and A. hybridus) with pollen that acts as a hay fever allergen

More from Merriam-Webster on pigweed

Rhyming Dictionary: Words that rhyme with pigweed

Britannica.com: Encyclopedia article about pigweed

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