1. A thin membrane enveloping the foetus.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• zllantois,
• sllantois,
• wllantois,
• qllantois,
• aklantois,
• aplantois,
• aolantois,
• alkantois,
• alpantois,
• aloantois,
• allzntois,
• allsntois,
• allwntois,
• alklantois,
• allantoise,
• allitris,
• ellastosis,
• aliantus,
• allantoied,
• alantoid

• almaty,
• allantoic,
• Allantoid.

The adjective form of the word "allantois" is "allantoic".

The plural of the "allantois" can be the "allantoides".

The singular of the "allantois" can be the "allantois".