ninhydrin

noun

nin·hy·drin nin-ˈhī-drən

: a poisonous crystalline oxidizing agent C₉H₆O₄ used especially as an analytical reagent

Word History

Etymology

from Ninhydrin, a trademark

First Known Use

1913, in the meaning defined above

Time Traveler

The first known use of ninhydrin was in 1913

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Browse Nearby Words

Ningxia Huizu

ninhydrin

ninja

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Cite this Entry

Style

“Ninhydrin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ninhydrin. Accessed 3 Jul. 2025.

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Medical Definition

ninhydrin

noun

nin·hy·drin nin-ˈhī-drən

: a poisonous crystalline oxidizing agent C₉H₆O₄ used especially as an analytical reagent

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