para red

noun
\¦parə+\

Definition of para red 

1 : blood red

2 or less commonly para red toner sometimes capitalized P&R : any of a group of brilliant bluish or yellowish red azo dyes or pigments that have fair resistance to light but that may bleed in water and many organic solvents, that are made by coupling diazotized para-nitroaniline with beta-naphthol often mixed with a beta-naphthol-sulfonic acid for producing the darker shades of red, and that are used chiefly in paints and printing inks especially : paranitraniline red — compare fire red sense 2

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History and Etymology for para red

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