change color, often in an undesired manner; "The shirts discolored" cause to lose or change color; "The detergent discolored my shirts" lose color or turn colorless; "The painting discolored
To alter the natural hue or color of; to change to a different color; to stain; to tinge; as, a drop of wine will discolor water; silver is discolored by sea water
The gradual yellowing of foam due to a photochemical reaction It is faster in sunlight than in artificial light, although it occurs in both Fresh foam may discolor in the center of the block as a result of thermal or chemical events (Does not affect physical properties )
dis·col·our discolours discolouring discoloured in AM, use discolor If something discolours or if it is discoloured by something else, its original colour changes, so that it looks unattractive. A tooth which has been hit hard may discolour Some oil had seeped out, discolouring the grass. + discoloured dis·col·oured Some of the prints were badly discoloured. + discoloration dis·col·ora·tion the discoloration of the soil from acid spills. to change colour, or to make something change colour, so that it looks unattractive