Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: phenobarbital
Next word: phenol
Definition of: phenocryst
(fē′nō·krist) noun Geol.
A mineral constituent of a rock, occuring in well-defined crystals embedded in a fine-grained groundmass. [<F phénocryste <Gk. phainein show + krystallos a crystal]
—phe′no·crys′tic adjective
Comment about this word, ask questions, or add new information about this topic: