chorioallantois

noun cho·rio·al·lan·to·is \ ˌkȯr-ē-(ˌ)ō-ə-ˈlan-tə-wəs \

Definition of chorioallantois

: a vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois that in the hen's egg is used as a living culture medium for viruses and for tissues called also chorioallantoic membrane

chorioallantoic

play \-ˌa-lən-ˈtō-ik\ adjective

Origin and Etymology of chorioallantois

New Latin, from Greek chorion + New Latin allantois


Medical Dictionary

chorioallantois

noun cho·rio·al·lan·to·is \ ˌkōr-ē-ō-ə-ˈlant-ə-wəs, ˌkȯr- \

medical Definition of chorioallantois

plural chorioallantoides play \-ō-ˌal-ən-ˈtō-ə-ˌdēz, -ō-ˌal-ˌan-\
: a vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois that in the hen's egg is used as a living culture medium for viruses and for tissues called also chorioallantoic membrane

chorioallantoic

play \-ˌal-ən-ˈtō-ik\ adjective

Seen and Heard

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

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

to remove or wipe out

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

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

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

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!