Meaning & use
fetus
Last updated
An unborn human or animal in the later stages of development in the womb, after the initial embryonic stage.
See it in a sentence
The ultrasound showed the fetus was developing normally.
At twelve weeks, the fetus is about the size of a lime.
A note on using this word
In humans, the term is generally used from about eight weeks after conception until birth, following the earlier 'embryo' stage.
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