noun🔗ShareGrisouAn inflammable gas (mostly methane) found in coal mines; forms an explosive mixture with air."The old coal mine was sealed off due to the constant danger of firedamp explosions. "L'ancienne mine de charbon a été scellée en raison du danger constant d'explosions de grisou.substancematerialgeologyenergychemistryenvironmentdisasterfuelindustryChat with AIVocabulary GamePractice Reading
