phosphorite

[ fos-fuh-rahyt ]
/ ˈfɒs fəˌraɪt /
|

noun

a sedimentary rock sufficiently rich in phosphate minerals to be used as a source of phosphorus for fertilizers.

Origin of phosphorite

First recorded in 1790–1800; phosphor- + -ite1
Related formsphos·pho·rit·ic [fos-fuh-rit-ik] /ˌfɒs fəˈrɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for phosphorite

British Dictionary definitions for phosphorite

phosphorite

/ (ˈfɒsfəˌraɪt) /

noun

a fibrous variety of the mineral apatite
any of various mineral deposits that consist mainly of calcium phosphate
Derived Formsphosphoritic (ˌfɒsfəˈrɪtɪk), adjective
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