phosphorous

adjective
phos·​pho·​rous | \ ˈfäs-f(ə-)rəs; fäs-ˈfȯr-əs \

Definition of phosphorous

: of, relating to, or containing phosphorus especially with a valence lower than in phosphoric compounds

Examples of phosphorous in a Sentence

Recent Examples on the Web

Those three numbers signify the amount of nitrogen, phosphorous and potassium in the fertilizer, in that order. Roy Berendsohn, Popular Mechanics, "How to Mulch Leaves With a Lawn Mower," 20 Sep. 2018 That won’t be a problem in most parts of the world because phosphorous is in dangerously short supply. Lynn Brezosky, San Antonio Express-News, "A&M cotton research could open new front in war on weeds," 5 July 2018 These improvements make the most of every acre and enhance fertilization and irrigation efficiency to maximize the use of nitrogen, phosphorous, and water. Diana Gitig, Ars Technica, "A roadmap to agriculture that’s sustainable and climate-neutral," 15 Oct. 2018 European scientists have been looking for ways to reclaim phosphorous from animal and human waste. Lynn Brezosky, San Antonio Express-News, "A&M cotton research could open new front in war on weeds," 5 July 2018 That white tip of theirs is the potassium chlorate, an easy-to-trigger oxidizing agent, that pumps oxygen into the reaction of the red portion, phosphorous, and allows it to burn the sulfur as fuel. Sam Eifling, Popular Mechanics, "How To Light a Match With Nothing But Other Matches," 28 Apr. 2016 And more intense rainstorms, also conclusively linked to climate change, can wash more nutrients into lakes and reservoirs, especially from farms where nitrogen and phosphorous-rich fertilizers are used, Chapra said. Tom James, chicagotribune.com, "Warming drives spread of toxic algae in U.S., researchers say," 22 June 2018 Overall, the foundation said states are reducing enough phosphorous and sediment pollution. Washington Post, "Report: Chesapeake Bay improving but huge challenges remain," 30 May 2018 On most days, mortar crews at the outpost lob dozens of rounds of high explosives and white-phosphorous smoke into the mountains, either to kill Islamic State fighters or just to discourage them from settling in. Michael M. Phillips, WSJ, "Green Berets Brace for Islamic State Offensive in Afghanistan," 15 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'phosphorous.' 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 phosphorous

1788, in the meaning defined above

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Last Updated

12 Dec 2018

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Time Traveler for phosphorous

The first known use of phosphorous was in 1788

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More Definitions for phosphorous

phosphorous

adjective
phos·​pho·​rous | \ ˈfäs-f(ə-)rəs; fäs-ˈfōr-əs, -ˈfȯr- \

Medical Definition of phosphorous

: of, relating to, or containing phosphorus especially with a valence lower than in phosphoric compounds

More from Merriam-Webster on phosphorous

Rhyming Dictionary: Words that rhyme with phosphorous

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