1 amido naphthol red | Definition of amido naphthol red

amido naphthol red

noun, often capitalized A&N&R
ami·​do naph·​thol red | \ ¦aməˌdō¦-\

Definition of amido naphthol red

: either of two red acid azo dyes

First Known Use of amido naphthol red

1903, in the meaning defined above

History and Etymology for amido naphthol red

amid- + naphthol

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