noun🔗ShareSulfuroAny compound of sulfur and a metal or other electropositive element or group."The rotten egg smell near the volcano was likely due to hydrogen sulfide gas released from the rocks. "El olor a huevo podrido cerca del volcán probablemente se debió al gas sulfuro de hidrógeno liberado de las rocas.chemistrycompoundsubstanceelementmineralChat with AIVocabulary GamePractice Reading