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
#
PRR
PRR is an abbreviation for:
Pattern Recognition Receptor, a surface molecule of cells of the immune system
Pennsylvania Railroad
, a former U.S. railroad company
Disambiguation
Abbreviation
663417
de