Fetus

A fetus (alternatively foetus) is an embryo? in later stages of development, from the third month of pregnancy until birth? in humans.

The word fetus come directly from the Latin fetus, hence it can be argued that pseudo-Greek foetus is an incorrect spelling. In general the medical community only permits the spelling fetus. However the spelling foetus persists in the wider community, most notably in Britain, and is accepted in some dictionaries.

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