Definition of Porphyry
Por´phy`ry
n.
1.
(Geol.)
A
term
used
somewhat
loosely
to
designate
a
rock
consisting
of
a
fine-grained
base
(
usually
feldspathic
)
through
which
crystals
,
as
of
feldspar
or
quartz
,
are
disseminated
.
There
are
red
,
purple
,
and
green
varieties
,
which
are
highly
esteemed
as
marbles
.
Porphyry shell
(Zool.)
a
handsome
marine
gastropod
shell
(
Oliva
porphyria
),
having
a
dark
red
or
brown
polished
surface
,
marked
with
light
spots
,
like
porphyry
.
Related Words
groundmass
,
igneous
rock
,
porphyritic
rock
Search
Word:
Browse
Porkwood
Pornerastic
Pornographic
Pornography
Porosity
Porotic
Porotype
Porous
Porously
Porousness
Porpentine
Porpesse
Porphyraceous
Porphyre
Porphyrite
Porphyritic
Porphyritic granite
Porphyrization
Porphyrize
Porphyrogenitism
Porphyry shell
Porpita
Porpoise
Porporino
Porpus
Porraceous
Porrect
Porrection
Porret
Porridge
Porringer
Port
Port arms
Port bar
Port charges
Port Jackson shark
Port lid
Port of entry
Port toll
Port warden
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
© 2008
Interapple, Inc.
Cover
