bac·​te·​rio·​purpurin | \ bak¦tirē(ˌ)ō + \

Definition of bacteriopurpurin

: 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

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!

First Known Use of bacteriopurpurin

circa 1887, in the meaning defined above

History and Etymology for bacteriopurpurin

bacteri- + purpurin

Keep scrolling for more

Learn More about bacteriopurpurin

Time Traveler for bacteriopurpurin

Time Traveler

The first known use of bacteriopurpurin was circa 1887

See more words from the same year

Statistics for bacteriopurpurin

Cite this Entry

“Bacteriopurpurin.” The Dictionary, Merriam-Webster Inc., Accessed 15 December 2019.

Comments on bacteriopurpurin

What made you want to look up bacteriopurpurin? Please tell us where you read or heard it (including the quote, if possible).


delight or enjoyment

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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