(chemistry) Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalentcations. [from 17th c.]
“He is an alumn from Ecole Polytechnique, and received a Master of Engineering from Ecole Nationale Supérieure des Télécommunications.”
“The role of intellectual purveyors that you embody, Galatasaray alumn and friends, as intellectuals and connoisseurs of our two cultures, is that much more important.”
“Bailey is an Alabama native and an alumn of the institution over which he will soon preside.”