noun🔗ShareプロパンAn aliphatic hydrocarbon, C3H8, a constituent of natural gas."My dad uses propane to fuel the barbecue grill for our family cookouts. "父は家族のバーベキューのために、バーベキューグリルにプロパンを使います。compoundsubstancechemistryfuelenergyChat with AIVocabulary GamePractice Reading