[f. CRYST(AL + L. oleum oil.] The name given to a process, in vogue about 1883, for transferring oil paintings or photographs to glass.
1883. Northern Echo, 28 June, 3/5. Specimens of crystoleum painting.
1884. Girls Own Paper, Jan., 190/1. To how great an extent crystoleum has been practised, a glance at shop windows and a visit to exhibitions will testify.