Definition of xenomorphic
i. Said of the holocrystalline texture of an igneous or metamorphic rock, characterized by crystals not bounded by their own faces but with their forms impressed upon them by adjacent mineral grains. Also said of a rock with such a texture.
ii. In European usage synonymous for anhedral.
Synonym of: allotriomorphic, anidiomorphic, xenomorphic-granular, anhedral
Compare with: automorphic