noun🔗ShareAny substance that is not flammable."The construction of the fireplace used incombustible such as brick and stone to prevent fires from spreading. "substancematerialchemistryChat with AIVocabulary GamePractice Reading
adjective🔗ShareNot capable of catching fire and burning; not flammable."The building materials used for the school's walls were chosen to be incombustible to prevent fires from spreading quickly. "materialsubstancechemistryscienceChat with AIVocabulary GamePractice Reading
