爆ばく発はつ性せいばくはつせいMeanings1nounexplosiveness; explosivityRefers to the property of being explosive, often used in technical or safety contexts.このガスは爆ばく発はつ性せいが高たかい。This gas is highly explosive.爆ばく発はつ性せいの物ぶっ質しつは注ちゅう意いして扱あつかわなければならない。Explosive substances must be handled with care.