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arresting gear
noun
(aviation,
military)
A
system
used
to
quickly
decelerate
a
landing
aircraft,
essential
for
landing
on
an
aircraft
carrier
(although
land-based
airfields
can
also
be
equipped
with
arresting
gear);
the
most
common
system
consists
of
a
series
of
transverse
wire
ropes
designed
to
snag
an
aircraft's
tailhook,
connected
to
a
hydraulic
or
mechanical
energy-absorbing
system,
but
other
systems
exist
(typically
only
for
use
in
an
emergency
situation)
which
use
a
net
to
slow
down
an
aircraft.
resisting arrest
self-arrest
noun
lightning arrester
noun
A
device
used
on
electrical
and
telecommunications
systems
to
protect
the
insulation
and
conductors
from
the
damaging
effects
of
lightning.
Typically,
it
has
a
high-voltage
terminal
and
a
ground
terminal.
When
a
surge
travels
along
the
power
line
to
the
arrester,
the
current
from
the
surge
is
diverted
through
the
arrester,
in
most
cases
to
earth.
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