: a thin usually green layer that forms naturally on the metals copper and bronze when they are exposed to the air for a long time
: a shiny or dark surface that forms naturally on something (such as wood or leather) that is used for a long time
: a thin layer

patina

a sensation of a ring or spot of light produced by pressure on the eyeball or direct stimulation of the visual system other than by light.

phosphene

a pleasant smell that frequently accompanies the first rain after a long period of warm, dry weather.

Shaheer Burji