Lengua inglesa
fetus or (non-technical) foetus
noun (fetuses or foetuses )
1 the embryo of a viviparous mammal during the later stages of development in the uterus, when it has started to resemble the fully-formed animal.
2 the human embryo from the end of the eighth week after conception until birth.
[14c: from Latin fetus offspring, incorrectly written foetus from the 16c to the late 1980s, and still often seen in the form foetus in non-technical contexts]

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