discoloration

This discoloration was of a livid blue, about the tint of a tattoo mark.

Inside the ship, the Nipe neither knew nor cared about the discoloration.

This removed from white fabrics every vestige of discoloration or stain.

As I watched I observed that the discoloration was beginning to fade.

It was hardly more than a discoloration, and suggested nothing of consequence.

Allow me to look closely at that discoloration once more for a moment.

From its discoloration this ivory should be at least five hundred years old.

Sometimes a discoloration is observable in iron kettles or other iron vessels.

Buster was glad to find that as yet there were no signs of discoloration, as he had feared.

Discrimination is requisite from discoloration by food or medicine.