cermet UK /ˈsɜː.mɛt/US /ˈsɝˌmɛt/ noun1 •A composite material composed of ceramic and metal materials, used in such applications as industrial saws and turbine blades.The multi-component alloy cermets, made up of different hard materials and binder elements, have high wear-resistance qualities that result in long tool life. — 2003 formscermets