PORPHYROID


Meaning of PORPHYROID in English

/pawr"feuh royd'/ , n.

1. a rock resembling porphyry.

2. a sedimentary rock that has been metamorphosed so as to leave some original crystals in a fine-textured, layered matrix.

[ 1790-1800; PORPHYR(Y) + -OID ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .