neutral red

noun
Updated on: 25 Apr 2018

Definition of neutral red

: a basic dye used chiefly as a biological stain and acid-base indicator

Recent Examples of neutral red from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neutral red.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of neutral red

1890

in the meaning defined above

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Medical Dictionary

neutral red

noun

medical Definition of neutral red

: a basic phenazine dye used chiefly as a biological stain and acid-base indicator

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