variants or tropeolin
plural -s
often capitalized
: any of several orange or orange-yellow azo dyes some of which (as methyl orange) are used as acid-base indicators or as biological stains

Word History


International Scientific Vocabulary tropaeol- (from New Latin Tropaeolum) + -in

First Known Use

1878, in the meaning defined above

Time Traveler
The first known use of tropaeolin was in 1878

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Dictionary Entries Near tropaeolin

Cite this Entry

“Tropaeolin.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2023.

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