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
blocker (n.)
[blocker 词源字典]
c. 1400 of a tool, c. 1600 of a person, agent noun from
block
(v.). U.S. football sense from 1914.
[blocker etymology, blocker origin, 英语词源]