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emission
noun
-
emission
the
act
or
process
of
sending
out
light
,
heat
,
gas
,
sound
,
or
another
substance
•
The
emission
of
smoke
from
the
chimney
was
visible
for
miles
.
The
emission
of
smoke
from
the
chimney
was
visible
for
miles
.
•
Strict
rules
limit
the
emission
of
noise
near
hospitals
.
Strict
rules
limit
the
emission
of
noise
near
hospitals
.
From
Latin
emissio
“
sending
forth
,”
from
emittere
“
to
send
out
.”
noun
a
substance
such
as
gas
,
smoke
,
or
light
that
is
released
into
the
air
,
especially
pollutants
from
vehicles
or
factories
•
Car
emissions
are
a
major
cause
of
urban
pollution
.
Car
emissions
are
a
major
cause
of
urban
pollution
.
•
The
factory
installed
filters
to
cut
its
toxic
emissions
.
The
factory
installed
filters
to
cut
its
toxic
emissions
.
noun
the
release
of
energy
in
the
form
of
light
or
other
electromagnetic
waves
from
a
substance
•
The
bright
glow
is
caused
by
the
emission
of
photons
as
electrons
drop
to
lower
energy
levels
.
The
bright
glow
is
caused
by
the
emission
of
photons
as
electrons
drop
to
lower
energy
levels
.
•
Astronomers
study
the
radio
emission
from
distant
galaxies
.
Astronomers
study
the
radio
emission
from
distant
galaxies
.
