noun
reverse thrust; retrofiring
Technical term in rocketry and aviation for firing engines in the opposite direction to decelerate or change direction.
着陸時に逆噴射を使って減速する。
Use reverse thrust to decelerate during landing.
noun
sudden mental derangement
Obsolete colloquial term for a sudden, extreme change in mental state or behavior, akin to a 'mental U-turn'.
彼は突然逆噴射を起こして、会社を辞めてしまった。
He suddenly went off the rails and quit his job.