absorptance
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absorptance Definition
(n)
a
measure
of
the
rate
of
decrease
in
the
intensity
of
electromagnetic
radiation
(
as
light
)
as
it
passes
through
a
given
substance
;
the
fraction
of
incident
radiant
energy
absorbed
per
unit
mass
or
thickness
of
an
absorber
; "
absorptance
equals
1
minus
tran
absorptance Synonyms
absorptance
absorption coefficient
coefficient of absorption
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