abio·​ses·​ton ¦ā-ˌbī-ō-¦se-ˌstän How to pronounce abioseston (audio)
: the nonliving constituents of seston : tripton
Since many organisms discriminate between particles only on the basis of size, they may also ingest considerable quantities of suspended inorganic particles, or abioseston.J. H. R. Gee, in Fundamentals of Aquatic Ecology, 1991
compare bioseston

Word History


borrowed from German Abioseston, from a- a- entry 2 + bio- bio- + Seston seston

First Known Use

1963, in the meaning defined above

Time Traveler
The first known use of abioseston was in 1963

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 abioseston

Cite this Entry

“Abioseston.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abioseston. Accessed 3 Feb. 2023.

Love words? Need even more definitions?

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

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?