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nitrogen
noun
ni·tro·gen ˈnī-trə-jən 
often attributive
: a nonmetallic chemical element that under standard conditions is a colorless, odorless, inert gas, that constitutes 78 percent of the Earth's atmosphere, and that is used especially in the industrial synthesis of ammonia, as a component of inert atmospheres, and in liquid form as a refrigerant see Chemical Elements Table
Example Sentences
Recent Examples on the Web The fertilizer used at these times should be high in nitrogen. 
Chris Mckeown, The Enquirer, 3 Sep. 2022 Belgian researchers warned that dog urine and feces were contributing large amounts of phosphorus and nitrogen to nature reserves. Rafil Kroll-zaidi, Harper’s Magazine , 25 May 2022 Apply modest amounts of slow-release fertilizer, low in nitrogen and high in potassium. oregonlive, 16 Apr. 2022 Rich in nitrogen but starved for moisture, a field of creeping buttercup and Joe-Pye weed might benefit from a water-retaining Dogwood tree. Geoffrey Bunting, Wired, 5 Feb. 2022 His team collected plants and soil from nearly two dozen sites each year, froze the samples in liquid nitrogen, and brought them back to his laboratory at the Pontifical Catholic University of Chile. Susan Cosier, Scientific American, 20 Jan. 2022 Cryonics: Putting your future plans on ice In an Arizona laboratory, the bodies of nearly 200 people, who are legally dead, are being stored in liquid nitrogen, to be kept frozen until scientists in the future can possibly revive them. CBS News, 24 Nov. 2021 Not only do legumes not need fertilizing, they can be planted alongside other crops, leaving the soil richer in nitrogen and reducing the need for those crops to be fertilized too. Rebecca Cairns, CNN, 29 Sep. 2021 Researchers store vials of aging cells in liquid nitrogen for use in future experiments. Margaret Talbot, The New Yorker, 11 Aug. 2021 See More
Chris Mckeown, The Enquirer, 3 Sep. 2022 Belgian researchers warned that dog urine and feces were contributing large amounts of phosphorus and nitrogen to nature reserves. Rafil Kroll-zaidi, Harper’s Magazine , 25 May 2022 Apply modest amounts of slow-release fertilizer, low in nitrogen and high in potassium. oregonlive, 16 Apr. 2022 Rich in nitrogen but starved for moisture, a field of creeping buttercup and Joe-Pye weed might benefit from a water-retaining Dogwood tree. Geoffrey Bunting, Wired, 5 Feb. 2022 His team collected plants and soil from nearly two dozen sites each year, froze the samples in liquid nitrogen, and brought them back to his laboratory at the Pontifical Catholic University of Chile. Susan Cosier, Scientific American, 20 Jan. 2022 Cryonics: Putting your future plans on ice In an Arizona laboratory, the bodies of nearly 200 people, who are legally dead, are being stored in liquid nitrogen, to be kept frozen until scientists in the future can possibly revive them. CBS News, 24 Nov. 2021 Not only do legumes not need fertilizing, they can be planted alongside other crops, leaving the soil richer in nitrogen and reducing the need for those crops to be fertilized too. Rebecca Cairns, CNN, 29 Sep. 2021 Researchers store vials of aging cells in liquid nitrogen for use in future experiments. Margaret Talbot, The New Yorker, 11 Aug. 2021 See More Word History
Etymology
French nitrogène, from nitre niter + -gène -gen
First Known Use
1791, in the meaning defined above
Time Traveler
The first known use of nitrogen was in 1791 Phrases Containing nitrogen
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