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
allotrope (n.)
[allotrope 词源字典]
1847, back-formation from
allotropy
"variation of physical properties without change of substance," from
allo-
+
-tropy
"manner" (see
-trope
). Related:
Allotropic
.
[allotrope etymology, allotrope origin, 英语词源]