Bessemer iron

noun

variants or Bessemer pig

: a cast iron that contains not more than 0.10 percent of phosphorus and is suitable for the manufacture of Bessemer steel by the acid process

Word History

Etymology

after H. Bessemer

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