bak¦tirē(ˌ)ō +
: a red coloring matter present in some bacteria that has the power of reducing highly oxidized compounds by absorption of certain rays of light
broadly : any of several bacterial photosynthetic pigments

Word History


bacteri- + purpurin

First Known Use

circa 1887, in the meaning defined above

Time Traveler
The first known use of bacteriopurpurin was circa 1887

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 bacteriopurpurin

Cite this Entry

“Bacteriopurpurin.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

Love words? Need even more definitions?

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