allantois
Kelime Anlamı :

1. Gebelikte plasentayı oluşturan rahim zarı: Alantua, bumbarcık.
2. embriyonal idrar torbası.
3. allantois.
Eş Anlamlı Kelimeler :
allantoid
Tanımlar :
1. A membranous sac that develops from the posterior part of the alimentary canal in the embryos of mammals, birds, and reptiles. it is important in the formation of the umbilical cord and placenta in mammals. also called allantoid.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A sac, having a number of functions, that develops in the alimentary canal of the embryos of mammals, birds and reptiles.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle.
from the GNU version of the Collaborative International Dictionary of English
1. A fetal appendage of most vertebrates, developing as a sac or diverticulum from the posterior portion of the intestinal cavity.
from The Century Dictionary and Cyclopedia
1. the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.