plural -s
: a liquid aromatic hydrocarbon C6H2(CH3)4 prepared with other hydrocarbons by methylation of mesitylene or pseudocumene by means of the Friedel-Crafts reaction; 1,2,3,4-tetramethyl-benzene

Word History


International Scientific Vocabulary prehnitic (acid) + -ene

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 prehnitene

Cite this Entry

“Prehnitene.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2023.

Love words? Need even more definitions?

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