Sphaerium

noun
Sphae·​ri·​um | \ ˈsfirēəm \

Definition of Sphaerium

: a widely distributed genus (the type of the family Sphaeriidae) of small viviparous freshwater bivalve mollusks that have a thin light-colored shell and the siphons separate — see fingernail clam

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!

History and Etymology for Sphaerium

New Latin, from Greek sphairion, diminutive of sphaira ball, sphere

Keep scrolling for more

Learn More About Sphaerium

Statistics for Sphaerium

Cite this Entry

“Sphaerium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Sphaerium. Accessed 22 Jun. 2021.

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

WORD OF THE DAY

Test Your Vocabulary

Return of Name that Color!

  • a light greenish blue color
  • Name that color:
True or False

Test your knowledge - and maybe learn something along the way.

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!