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
reagent (n.)
[reagent 词源字典]
1785, from
re-
+
agent
"substance that produces a chemical reaction."
[reagent etymology, reagent origin, 英语词源]
[reagent 词源字典]