porphyry

English Thesaurus

1. any igneous rock with crystals embedded in a finer groundmass of minerals (noun.substance)

hypernym	:	igneous rock,
definition	:	rock formed by the solidification of molten magma (noun.substance)

substance holonym	:	groundmass,
definition	:	(geology) the matrix of fine-grained crystalline material in which larger crystals are embedded (noun.substance)

derivation	:	porphyritic,
definition	:	(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals (adj.pert)

derivation	:	porphyritic,
definition	:	(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals (adj.pert)