'porphyritic rock' definitions:

Definition of 'porphyritic rock'

(from WordNet)

noun

Any igneous rock with crystals embedded in a finer groundmass of minerals [syn: porphyry, porphyritic rock]

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