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phosphorous

[fos-fer-uh s, fos-fawr-uh s, -fohr-] /ˈfɒs fər əs, fɒsˈfɔr əs, -ˈfoʊr-/
adjective, Chemistry
1.
containing trivalent phosphorus.
Origin
1770-1780
1770-80; phosphor- + -ous
Related forms
nonphosphorous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for phosphorous
  • It was about a bacteria that use arsenic in place of phosphorous.
  • The alchemists also discovered some elements, such as phosphorous.
  • These smaller organisms are also stimulated by nitrogen and phosphorous nutrients running off the land.
  • Calcium and phosphorous, two other important minerals in the body, are also monitored closely.
British Dictionary definitions for phosphorous

phosphorous

/ˈfɒsfərəs/
adjective
1.
of or containing phosphorus in the trivalent state
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for phosphorous
phosphorous
1629, "the morning star," from L. Phosphorus "morning star," from Gk. Phosphoros "morning star," lit. "torchbearer," from phos "light" (related to phainein "to show, to bring to light;" see phantasm) + phoros "bearer," from pherein "to carry" (see infer). Meaning "substance or organism that shines of itself" is attested from 1645. As the name of a non-metallic chemical element ["Accidentally obtained from urine in 1669 by Brandt, an alchemist of Hamburg, in the course of his search for the philosophers' stone." OED], it is recorded from 1680.
Online Etymology Dictionary, © 2010 Douglas Harper
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phosphorous in Medicine

phosphorous phos·pho·rous (fŏs'fər-əs, fŏs-fôr'əs)
adj.
Of, relating to, or containing phosphorus, especially with a valence of 3 or a valence lower than that of a comparable phosphoric compound.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Difficulty index for phosphorous

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Word Value for phosphorous

21
22
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