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
orthoptics
"The study or treatment of irregularities of the eyes, especially those of the eye muscles that prevent normal binocular vision", Late 19th century: from ortho- 'correct' + Greek
optikos
(see
optic
).