What is causing to melt; becoming melted; -- used literally or figuratively; as, a melting heat; a melting appeal; a melting mood. -- Melt"ing*ly, adv called?

melting — Causing to melt; becoming melted; -- used literally or figuratively; as, a melting heat; a melting appeal; a melting mood. -- Melt"ing*ly, adv. (Webster's 1913.)

Sources