- nouna greenish grey or black silicate of iron and aluminum• Hypernyms: ↑iron ore
* * */sham"euh zuyt'/, n.a mineral of the chlorite group, hydrous aluminum silicate of iron, occurring in gray or black crystals in oolitic iron ore.[1825-35; var. of camoisite, named after Chamoison in the Valais, Switzerland, where found; see -ITE1]
Useful english dictionary. 2012.