neutral red

noun

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

Word History

First Known Use

1890, in the meaning defined above

Time Traveler
The first known use of neutral red was in 1890

Dictionary Entries Near neutral red

neutral position

neutral red

neutral shoreline

See More Nearby Entries 

Cite this Entry

“Neutral red.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutral%20red. Accessed 21 Dec. 2024.

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Medical Definition

neutral red

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