Definition of Mars yellow
1 : an iron yellow artist's pigment made usually by precipitating an iron salt with alkali and heating the product
2 or mars yellow : a moderate to strong orange that is yellower and darker than carrot red and darker than zinc orange or sunburst —called also iron yellow, siderin yellow
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!
Origin and Etymology of mars yellow
from mars (iron)
Seen and Heard
What made you want to look up Mars yellow? Please tell us where you read or heard it (including the quote, if possible).