Achromatiaceae

plural noun
Ach·​ro·​mati·​a·​ce·​ae | \ ˌa-krō-ˌma-tē-ˈā-sē-ˌē, -ˌmā-shē- \

Definition of Achromatiaceae

: a family usually placed in the order Beggiatoales that includes large motile aquatic bacteria containing sulfur or calcium carbonate inclusions but no 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 Achromatiaceae

1918, in the meaning defined above

History and Etymology for Achromatiaceae

New Latin, from Achromatium, type genus (from achromat- + -ium) + -aceae

Keep scrolling for more

Learn More about Achromatiaceae

Time Traveler for Achromatiaceae

Time Traveler

The first known use of Achromatiaceae was in 1918

See more words from the same year

Statistics for Achromatiaceae

Cite this Entry

“Achromatiaceae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Achromatiaceae. Accessed 14 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Comments on Achromatiaceae

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

WORD OF THE DAY

Test Your Vocabulary

Words Used by Nabokov Quiz

  • image1676440788
  • Choose the best definition or synonym for the word in bold: "There are some eructations that sound like cheers—at least, mine did." Lolita
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

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