iron yellow

noun

Definition of iron yellow

  1. 1 :  any of several permanent synthetic yellow to orange pigments (as Mars yellow) consisting wholly or in part of hydrated iron oxide

  2. 2 :  mars yellow 2

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up iron yellow? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a rounded knoll or a ridge of ice

Get Word of the Day daily email!