iron red

noun

1

: a natural or synthetic red pigment (as Indian red or Venetian red) consisting wholly or in part of iron oxide compare rouge sense 2a

2

: any of the colors oxide red

especially : indian red compare iron-oxide red

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