Definition of Diffusion
Dif`fu´sion
n.
1.
The
act
of
diffusing
,
or
the
state
of
being
diffused
;
a
spreading
;
extension
;
dissemination
;
circulation
;
dispersion
.
A
diffusion
of
knowledge
which
has
undermined
superstition
.
- Burke.
2.
(Physiol.)
The
act
of
passing
by
osmosis
through
animal
membranes
,
as
in
the
distribution
of
poisons
,
gases
,
etc
.,
through
the
body
.
Unlike
absorption
,
diffusion
may
go
on
after
death
,
that
is
,
after
the
blood
ceases
to
circulate
.
Related Words
action
,
activity
,
natural
action
,
natural
philosophy
,
natural
process
,
osmosis
,
permeation
,
pervasion
,
physical
science
,
physics
,
suffusion
,
transport
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