adj. Of relating to or containing trivalent phosphorus.
the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to phosphorus; resembling or containing phosphorus; specifically, designating those compounds in which phosphorus has a lower valence as contrasted with phosphoric compounds.
The Century Dictionary and Cyclopedia
Pertaining to, obtained from, or containing phosphorus.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. containing or characteristic of phosphorus
Word Usage
"These new pigs have the ability to better break down "phytase" which is rich in phosphorous and is found in the intestinal tract."