firedamp
🇺🇸
/'faɪəˌdæmp/
🇬🇧
/'faɪədæmp/
A dangerous gas in coal mines, mostly methane, that can explode if it catches fire.
The miners were cautious of the presence of firedamp in the tunnel, as it could cause a deadly explosion.
鉱山労働者は、トンネル内の瓦斯ガスの存在に注意を払い、それは致命的な爆発を引き起こす可能性があるためです。