تعريف to discolour في الإنجليزية الإنجليزية القاموس.
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