burn in
1. To keep a new system or device running continuously so that any weak elements or components will fail early and can be found and corrected before the system becomes an integral part of the users work routine. Such a test is often performed at the factory before a device is shipped.
2. To make a permanent change in the phosphor coating on the inside of a monitor screen by leaving the monitor on and keeping a bright, unchanging image on the screen for extended periods. Such an image will remain visible after the monitor is turned off. Burning in was a danger with older PC monitors; it is no longer a concern with most new PC monitors. Also called: ghosting.
Burnham · burn in · burn-in · burn incense · burn in effigy · burning · burning bush