witherite From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA yellow-grey mineral form of barium carbonate, BaCO3 Related wordsSynonymsbismuthiteweibullitebarytesbarytebaritehawthorneitebarytocalcitecalciboritecoutinhoitebjarebyiteberryitebarylitebarium sulphateweissbergitewhiteitebario-orthojoaquinite References Wiktionary — witherite Wikipedia — witherite