phosphorous

[fos-fer-uhs, fos-fawr-uhs, -fohr-]
adjective Chemistry.
containing trivalent phosphorus.

Origin:
1770–80; phosphor- + -ous

nonphosphorous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To phosphorous
Collins
World English Dictionary
phosphorous (ˈfɒsfərəs)
 
adj
of or containing phosphorus in the trivalent state

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

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
Cite This Source
American Heritage
Medical Dictionary

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.
Cite This Source
Example sentences
It was about a bacteria that use arsenic in place of phosphorous.
The alchemists also discovered some elements, such as phosphorous.
Calcium and phosphorous, two other important minerals in the body, are also monitored closely.
These smaller organisms are also stimulated by nitrogen and phosphorous nutrients running off the land.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature