autotroph
Definition of autotroph
n.
1.
an
organism
which
is
autotrophic
,
i
.
e
.,
an
organism
(
such
as
most
plants
and
certain
microorganisms
)
which
are
capable
of
synthesizing
its
own
food
from
simple
organic
substances
,
requiring
only
minerals
as
nutrients
for
growth
,
and
using
carbonate
or
carbon
dioxide
as
a
source
of
carbon
and
simple
inorganic
nitrogen
as
a
nitrogen
source
;
the
energy
required
is
derived
from
photosynthesis
or
chemosynthesis
.
Opposed
to
heterotroph
.
See
also
auxotroph
.
Related Words
autophyte
,
autophytic
plant
,
autotrophic
organism
,
flora
,
plant
,
plant
life
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