noun
: a silicate of zinc ; especially : the fluorescent crystalline orthosilicate that occurs in nature as willemite, that is made synthetically from zinc oxide and silica or a silicate solution, and that is used in activated form in phosphors
noun
: a silicate of zinc ; especially : the fluorescent crystalline orthosilicate that occurs in nature as willemite, that is made synthetically from zinc oxide and silica or a silicate solution, and that is used in activated form in phosphors
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012