tropaeolin

noun

tro·​pae·​o·​lin
variants or tropeolin
trōˈpēələ̇n
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

Etymology

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

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near tropaeolin

Cite this Entry

“Tropaeolin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tropaeolin. Accessed 6 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!