Definitions

1. noun

A type of rock or mineral deposit characterized by porphyritic texture, typically with a mixture of large and small crystals.

“The geologist carefully examined the porphyroid outcropping to identify its mineral composition.”

2. adjective

Having or resembling a porphyritic texture, or relating to rocks or minerals with such a texture.

“The porphyroid formation in the quarry was a significant discovery for the mining team.”