: a crystalline tannin C20H20O13 found in the leaves of the Amur maple

Word History


International Scientific Vocabulary acer- (from New Latin Acer, genus name of Acer ginnala) + tannin; originally formed in German

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of acertannin was in 1922

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near acertannin

Cite this Entry

“Acertannin.” Dictionary, Merriam-Webster, Accessed 14 Jun. 2024.

Love words? Need even more definitions?

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