potassium ferricyanide

noun

: a red crystalline salt K₃Fe(CN)₆ made by oxidizing potassium ferrocyanide with chlorine and used chiefly as a photographic bleach and in coating blueprint paper

called also red prussiate of potash

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now