opacifier

noun

opaci·​fi·​er

plural -s

: a constituent or additive (as of an enamel, a paint, a glass) that tends to opacify the system of which it is a part

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