smithsonitePronunciation: /ˈsmɪθsənʌɪt/Definition of smithsonite noun [mass noun] a yellow, grey, or green mineral consisting of zinc carbonate typically occurring as crusts or rounded masses. Origin: mid 19th century: from the name Smithson (see Smithsonian Institution) + -ite1smithsonite in other Oxford dictionaries Definition of smithsonite in the US English dictionary
