(of a rock) having the principal constituents in the form of crystals visible to the naked eye.
Also phan·er·it·ic [fan-uh-rit-ik] /ˌfæn əˈrɪt ɪk/.
Origin of phanerocrystalline
1860–65; < Greek phaneró(s) visible, manifest + crystalline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of igneous and metamorphic rocks) having a crystalline structure in which the crystals are large enough to be seen with the naked eye
Word Origin for phanerocrystalline
C19: from Greek phaneros visible + crystalline
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