: an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind
specifically
: a developing human from usually two months after conception to birth compare embryo sense 1a
Examples of fetus in a Sentence
Recent Examples on the Web
Smith is now 21 weeks pregnant and on life support, which keeps her breathing and appears to be sustaining her fetus.
—
Brian Niemietz, New York Daily News, 15 May 2025
Doctors have reportedly told her family that under Georgia's heartbeat law, they are legally required to maintain life support until the fetus reaches viability.
—Nick Mordowanec, MSNBC Newsweek, 14 May 2025
Mercury is especially toxic to pregnant women, fetuses and children in early ages, according to the World Health Organization, and is commonly ingested through fish and other seafood.
—Lindsey Choo, Forbes.com, 6 May 2025
Considered one of the top ten chemicals of public health concern by the World Health Organization, mercury can cause serious medical issues, distinctly for developing fetuses during pregnancy.
—Jenny Lehmann, Discover Magazine, 2 May 2025
See All Example Sentences for fetus
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Brian Niemietz, New York Daily News, 15 May 2025
Doctors have reportedly told her family that under Georgia's heartbeat law, they are legally required to maintain life support until the fetus reaches viability.
—Nick Mordowanec, MSNBC Newsweek, 14 May 2025
Mercury is especially toxic to pregnant women, fetuses and children in early ages, according to the World Health Organization, and is commonly ingested through fish and other seafood.
—Lindsey Choo, Forbes.com, 6 May 2025
Considered one of the top ten chemicals of public health concern by the World Health Organization, mercury can cause serious medical issues, distinctly for developing fetuses during pregnancy.
—Jenny Lehmann, Discover Magazine, 2 May 2025
See All Example Sentences for fetus
Cite this Entry
“Fetus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fetus. Accessed 21 May. 2025.
Copy CitationKids Definition
fetus
noun
fe·tus
ˈfēt-əs 
plural fetuses
: a young animal while in the body of its mother or in the egg especially in the later stages of development
especially
: a developing human being in the uterus from usually two months after pregnancy occurs to birth compare embryo sense 1
Medical Definition
fetus
noun
fe·tus
variants
or chiefly British foetus
plural fetuses or chiefly British foetuses or foeti
ˈfēt-ˌī
: an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind
specifically
: a developing human from usually two months after conception to birth compare embryo
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