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
trigonometric (adj.)
[trigonometric 词源字典]
1811; see
trigonometry
+
-ic
. Related:
Trigonometrical
(1660s).
[trigonometric etymology, trigonometric origin, 英语词源]
[trigonometric 词源字典]