plural -s
: any of three crystalline compounds NH2C6H4OH derived from phenol, distinguished as ortho-aminophenol, meta-aminophenol, and para-aminophenol, and used as dye intermediates, the para compound being also used as a fur and hair dye and as a photographic developer
usually amino phenol : any amino derivative of a phenol

Word History


International Scientific Vocabulary amin- + phenol; originally formed in German

First Known Use

1896, in the meaning defined at sense 1

Time Traveler
The first known use of aminophenol was in 1896

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 aminophenol

Cite this Entry

“Aminophenol.” Dictionary, Merriam-Webster, Accessed 24 May. 2024.

Love words? Need even more definitions?

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