diffraction grating
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diffraction grating Definition
(n)
optical
device
consisting
of
a
surface
with
many
parallel
grooves
in
it
;
disperses
a
beam
of
light
(
or
other
electromagnetic
radiation
)
into
its
wavelengths
to
produce
its
spectrum
diffraction grating Synonyms
diffraction grating
grating
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