{ it>or }, n. 1. (Med.) A lotion made by mixing calomel and lime water. [ 1913 Webster ]

2. A wash that blackens, as opposed to whitewash; hence, figuratively, calumny. [ 1913 Webster ]

To remove as far as he can the modern layers of black wash, and let the man himself, fair or foul, be seen. C. Kingsley. [ 1913 Webster ]