Definition of pacemaker
n.
1.
(Physiol. & Anat.)
a
specialized
bit
of
heart
tissue
that
controls
the
heartbeat
.
2.
An
implanted
electronic
device
that
takes
over
the
function
of
the
natural
cardiac
pacemaker
{
1
}; -
used
to
assist
people
whose
heartbeat
is
irregular
.
3.
A
horse
used
to
set
the
pace
in
racing
.
Related Words
example
,
exemplar
,
good
example
,
model
,
pacesetter
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P
i
Pa
Paage
Paard
Paas
Paas egg
Pablum
pabular
Pabulation
Pabulous
pabulum
PAC
paca
Pacable
Pacane
pacate
pacated
Pacation
pace
Paced
pacer
pacesetter
Pacha
Pachacamac
Pachak
Pachalic
pachinko
Pachisi
pachometer
pachonta
pachouli
pachuca tank
Pachy-
Pachycarpous
Pachycephala
Pachydactyl
Pachydactylous
pachyderm
pachyderma
pachydermal
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