cobalt sulfate

noun

: a sulfate of cobalt

usually : the salt CoSO₄ crystallizing in pale red monoclinic prisms containing seven molecules of water and occurring native as bieberite

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