Adjective
A
system
in
which
the
working
fluid
is
used
once
and
then
dumped
,
burned
up
,
etc
.
rather
than
being
recirculated
.
By
extension
,
an
electrical
system
that
runs
on
battery
power
without
the
means
to
recharge
during
operation
.
Noun
An
insured
item
of
which
the
entire
value
is
written off
.