phosphorus sulfide

noun

: any of several compounds of phosphorus and sulfur obtained by heating these elements: such as

a

: phosphorus sesquisulfide

b

: phosphorus pentasulfide

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