Last Updated：2025/11/20
(automotive) A protective system in automobiles in which when a crash occurs, a bag containing nitrogen, formed by the explosive decomposition of sodium azide, quickly inflates in front of the driver or passenger, preventing injury to the head. Side air bags, including the back seat passengers, also prevent injury.
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airbag
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Source Word
airbag
Noun
slang
(automotive)
A
protective
system
in
automobiles
in
which
when
a
crash
occurs,
a
bag
containing
nitrogen,
formed
by
the
explosive
decomposition
of
sodium
azide,
quickly
inflates
in
front
of
the
driver
or
passenger,
preventing
injury
to
the
head.
Side
air
bags,
including
the
back
seat
passengers,
also
prevent
injury.
Japanese Meaning
自動車に装備される安全装置で、衝突時に急速に膨らみ、運転者や乗客の頭部などへの衝撃を緩和するためのエアバッグ（側面用エアバッグも含む）。
Sense（1）
(automotive)
A
protective
system
in
automobiles
in
which
when
a
crash
occurs,
a
bag
containing
nitrogen,
formed
by
the
explosive
decomposition
of
sodium
azide,
quickly
inflates
in
front
of
the
driver
or
passenger,
preventing
injury
to
the
head.
Side
air
bags,
including
the
back
seat
passengers,
also
prevent
injury.
（ plural ）
