allantochorion

noun

al·​lan·​to·​cho·​ri·​on ə-ˌlan-(ˌ)tō-ˈkōr-ē-ˌän, -ˈkȯr- How to pronounce allantochorion (audio)
: an embryonic membrane consisting of a fused allantois and chorion

Dictionary Entries Near allantochorion

ALL

allantochorion

allantoic

See More Nearby Entries 

Cite this Entry

“Allantochorion.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/allantochorion. Accessed 22 Mar. 2023.

Copy Citation

Share

Love words? Need even more definitions?

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

Word of the Day

Listen to the pronunciation of obdurate

See Definitions and Examples »

Test Your Vocabulary

What Did You Just Call Me?

  • brown chihuahua sitting on the floor with squinting eyes looking at the camera
  • Before we went to her house, Hannah told us her aunt was a flibbertigibbet.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
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?

PLAY
Words at Play
Ask the Editors
Word Games