syn·​an·​gi·​um | \ -jēəm \
plural synangia\ -​j(ē)ə \

Definition of synangium

1 : the peripheral part of an arterial trunk from which the branches arise in a lower vertebrate — compare pylangium
2 : a sorus (as in ferns of the family Marattiaceae) made up of sporangia variously united or cohered into a compound structure

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 synangium

New Latin, from syn- + -angium

Keep scrolling for more

Learn More about synangium

Statistics for synangium

Cite this Entry

“Synangium.” The Dictionary, Merriam-Webster Inc., Accessed 9 December 2019.

Comments on synangium

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


contradictory or incongruous words

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

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!