bezel /ˈbɛz.əl/ noun4 •The rim and flange which encompasses and fastens a jewel or other object, such as the crystal of a watch, in the cavity in which it is set. •A formed external frame or cover affixed to a device for protective or aesthetic purposeModern smartphones have very thin bezels. •The sloping edge or face on a cutting tool. •The oblique side or face of a cut gem; especially the upper faceted portion of a brilliant (diamond), which projects from its setting. formsbezels