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optically
ADV
เกี่ยวกับ
สายตา
kiao-kab-sai-ta
Webster's 1913 Dictionary
OPTICALLY
OPTICALLY
Op
"
tic
*
al
*
ly,
adv.
Defn:
By
optics
or
sight;
with
reference
to
optics.
Optically
active,
Optically
inactive
(
Chem.
Physics
),
terms
used
of
certain
metameric
substances
which,
while
identical
with
each
other
in
other
respects,
differ
in
this,
viz.
,
that
they
do
or
do
not
produce
right-handed
or
left-handed
circular
polarization
of
light.
--
Optically
positive,
Optically
negative.
See
under
Refraction.
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