Pediastrum

noun
Ped·​i·​as·​trum | \ ˌpedēˈastrəm, ˌpēd- \

Definition of Pediastrum

: a genus of free-floating green algae (family Hydrodictyaceae) that have flat platelike colonies of two or more polygonal cells with the marginal cells usually differing in shape and having usually two projections of the cell wall

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 Pediastrum

New Latin, from pedi- entry 2 + Greek astron star

Keep scrolling for more

Learn More About Pediastrum

Dictionary Entries Near Pediastrum

pedial

Pediastrum

pediatric

See More Nearby Entries 

Statistics for Pediastrum

Cite this Entry

“Pediastrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pediastrum. Accessed 28 Sep. 2021.

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

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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!