Definition of chrome orange
1 : any of several pigments varying from reddish yellow to deep orange and consisting essentially of varying proportions of normal and basic lead chromates that are usually prepared similarly to chrome yellows
2 : any of several mordant acid dyes
3 : a vivid reddish orange that is yellower, less strong, and much lighter than international orange and duller and slightly yellower than golden poppy —called also orange chrome yellow
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