noun
thermobaric bomb
A type of explosive weapon that uses oxygen from the surrounding air to generate a high-temperature blast; also known as a vacuum bomb or fuel-air explosive.
サーモバリック爆弾は、密閉空間で特に大きな破壊力を持つ。
Thermobaric bombs have especially great destructive power in enclosed spaces.
A more general term for fuel-air explosives; サーモバリック爆弾 is a specific type often used in military contexts.
From English 'thermobaric' + 爆弾 (bomb). The English term combines 'thermo-' (heat) and 'baric' (pressure), describing the weapon's dual blast mechanism.