copper hydroxide

noun

: a hydroxide or hydrated oxide of copper

specifically : the hydroxide Cu(OH)₂ obtained as a blue precipitate by the action of alkali on cupric salt solutions or as blue crystals and used chiefly as a mordant and in preparing cuprammonium solution

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