porphyroid (English, noun)
expansion: porphyroid (countable and uncountable, plural porphyroids)
Senses:
topics: chemistry
geography
geology
mineralogy
natural-sciences
physical-sciences
glosses: A crystalline and schistose rock containing porphyritic crystals of feldspar.
tags: countable
uncountable
Forms:
form: porphyroids
tags: plural