- a granular igneous rock composed chiefly of olivine and augite, but containing small amounts of feldspar.
Origin of picrite
1805–15; < Greek pikr(ós) bitter + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for picrite
These range from acid to ultrabasic types and include granite, augite-diorite, picrite and serpentine.
- a coarse-grained ultrabasic igneous rock consisting of olivine and augite with small amounts of plagioclase feldspar
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