Meaning Of The Word Allantois
What's the definition of Allantois? Find Allantois meanings, definitions and more at the Real Dictionary online.
Allantois Meaning
Allantois Definition |
---|
What's The Definition Of Allantois?
allantois in American English
a membranous pouch with a rich blood supply in the embryos of birds, reptiles, and mammals: it is an organ of respiration and excretion for embryonic birds and reptiles: in mammals it helps form the placenta noun: a vascular, extraembryonic membrane of birds, reptiles, and certain mammals that develops as a sac or diverticulum from the ventral wall of the hindgut allantois in British English noun: a membranous sac growing out of the ventral surface of the hind gut of embryonic reptiles, birds, and mammals. It combines with the chorion to form the mammalian placenta |
More Definitions
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Definitions Of The Day
- Curlyheads ‐ a shrubby clematis, Clematis ochroleuca, of the…
- Saint Michael ‐ one of the archangels. Feast day: Sept 29 or Nov…
- Transparent ‐ transmitting light rays so that objects on the…
- Unbalance ‐ the condition of being unbalanced; imbalance…
- Staphylococcus ‐ any of a genus (Staphylococcus) of spherical…
- Adrenochrome ‐ a red biochemical, C9H9NO3, oxidized from epinephrine…
- Cantion ‐ noun: a song
- Archconservative ‐ adjective: consistently holding extremely conservative…
- Grandfatherly ‐ of a grandfather; adjective: of or characteristic…
- Three-door ‐ noun: a car with three doors: one to the driver's…