The disease causes depigmentation of sections of skin, resulting in discoloration.
The red stains are discoloration from the original shade of the shirt and the holes are from natural wear and fray.
Silver-gilt articles tend to get discoloured by use, but this discoloration can be removed by soap and water.
This discoloration was of a livid blue, about the tint of a tattoo mark.
Some are soluble in water, as shown by the discoloration of the substances on which they grow.
As I watched I observed that the discoloration was beginning to fade.
The discoloration of the skin was like the effects of nitrate of silver.
Allow me to look closely at that discoloration once more for a moment.
The discoloration and swelling are most intense in the immediate vicinity of the wound, the edges of which are everted and moist.
Sometimes a discoloration is observable in iron kettles or other iron vessels.