noun
fetus
FEE-tuhs
noun
1
An unborn mammal at a later stage of development, showing recognizable features of the adult animal.
"By the second trimester, the fetus has all its major organs formed."
How to Use Fetus
Learner’s notesIn plain EnglishThe medical term for an unborn baby past the early embryo stage.
Easily confused with
Word Forms
fetuses plural, fetus plural, feti plural, fetii plural
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By the second trimester, the _____ has all its major organs formed.
Etymology
A learned borrowing from Latin fētus ("offspring"); a doublet of fawn.