reducing flame

noun

: a flame or part of a flame (as the inner cone of a gas flame) having partially burned gas and being capable of extracting oxygen from various metallic oxides placed within it

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