ALL meanings of phenocryst
phe·no·cryst
P p - noun phenocryst any of the conspicuous crystals in a porphyritic rock. 1
- noun phenocryst any of several large crystals that are embedded in a mass of smaller crystals in igneous rocks such as porphyry 0
- noun phenocryst a relatively large and usually conspicuous crystal found in a fine-grained matrix in porphyritic igneous rock 0