Noun
A
part
of
the
brain
,
in
humans
and
various
other
animals
,
that
is
involved
in
emotion
,
motivation
,
and
emotional
association
with
memory
;
in
humans
it
includes
the
amygdala
,
cingulate gyrus
,
fornicate gyrus
,
hippocampus
,
hypothalamus
,
mammillary body
,
nucleus accumbens
,
orbitofrontal cortex
and
parahippocampal gyrus
.