maraging /ˈmɑɹˌeɪd͡ʒɪŋ/ noun1 •A process that produces a tough, malleable form of steel (maraging steel) by means of heat treatment and precipitation hardening.At the core of the new centrifuge design is a thin, tubelike rotor made of carbon fibers rather than maraging steel, a variety with great strength, the institute’s report said. — 2008