1. The young of viviparons animals in utero, and of oviparous ones in the shell, after the embryo has developed.

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

• fetus,
• foetis,
• doetus,
• coetus,
• voetus,
• goetus,
• toetus,
• roetus,
• fietus,
• fketus,
• fpetus,
• f0etus,
• f9etus,
• fowtus,
• fostus,
• fotus,
• foetuss,
• foetes,
• faetus,
• Fetaus

• feuds,
• Fodge,
• fots,
• foutz,
• fetus,
• frets,
• foutch,
• fits,
• fouts.

The adjective form of the word "foetus" is "fetal".

The plural of the "foetus" can be the "foetuses".

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