petroleum spirit

noun

: a flammable petroleum distillate that boils lower than kerosine and is suitable for use as a solvent and thinner especially for paints and varnishes

—usually used in plural compare naphtha sense 3

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