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Absolute humidity
Meaning
Noun
●
In Meteorology & Weather:
In a system of
moist
air
, the
ratio
of the
mass
of
water vapor
present to the
volume
occupied
by the
mixture
, that is, the
density
of the
water vapor
component
. Absolute
humidity
is usually
expressed
in
grams
of
water vapor
per
cubic meter
or, in
engineering
practice
, in
grains
per
cubic foot
. Because this
measure
of
atmospheric
humidity
is not
conservative
with respect to
adiabatic
expansion
or
compression
, it is not
commonly
used by
meteorologists
. (Also called
vapor
concentration
and
vapor
density
). See
relative
humidity
.
Sourced from
Wiktionary
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