Definition of exogenous
ex`og´e`nous
a.
1.
(Bot.)
derived
from
or
originating
outside
;
pertaining
to
,
or
having
the
character
of
,
an
exogen
; -
the
opposite
of
endogenous
.
2.
(Bot.)
Growing
by
addition
to
the
exterior
;
growing
by
addition
of
a
new
external
layer
of
cells
on
the
surface
just
beneath
the
bark
; -
of
plants
.
3.
(Anat.)
Growing
from
previously
ossified
parts
; -
opposed
to
autogenous
.
4.
(Med.)
caused
by
factors
from
outside
the
body
,
rather
than
from
an
abnormality
of
internal
functions
; -
of
illness
.
5.
(Biol., Biochem.)
not
synthesized
within
the
organism
;
absorbed
or
assimilated
from
outside
the
organism
.
Exogenous aneurism
(Med.)
an
aneurism
which
is
produced
by
causes
acting
from
without
,
as
from
injury
.
Related Words
endogenic
,
endogenous
,
exogenic
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