A foetus is a developing human baby in the womb. It is called a foetus from the eighth week of pregnancy until birth. Before the eighth week, it is called an embryo.
The foetus grows and develops rapidly in the womb. By the end of the first trimester, it has all of its major organs and body parts. During the second and third trimesters, the foetus grows larger and its organs and body parts mature.
The foetus gets its nutrients from the mother's blood through the placenta. The placenta is a special organ that develops in the womb and connects the foetus to the mother's blood supply.
The foetus is also protected from infection by the mother's immune system. The mother's body produces antibodies that protect the foetus from harmful germs.
The foetus is developing normally.
Noun: foetus, foetuses.
Adjective: foetal.
The word "foetus" is derived from the Latin word foetŭs, which means "young of an animal". The Latin word foetŭs is thought to be cognate with the Greek word foetḗs, which also means "young of an animal".
What is a foetus?
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