quword
趣词
Word Origins Dictionary
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
cross-section (n.)
also
cross section
, 1748, originally in engineering sketches, from
cross
(adj.) +
section
(n.). Figurative sense of "representative sample" is from 1903.