: 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
Everything was smooth sailing until 19 weeks into Kaitlynn's pregnancy, when doctors noticed the fetus was measuring at 17 weeks.
—
Angela Andaloro, People.com, 5 Nov. 2024
While the fetus is perceived as a human being, underlines the director, children born around that time haven’t fully developed vital organs, which puts them at high risk, also of future health problems.
—Marta Balaga, Variety, 5 Nov. 2024
Case in point: Thea Thompson, a St. Petersburg mother and nurse who was excited to have a second child, learned last month, at 18 weeks pregnant, that the fetus wasn't going to survive, WUSF reported.
—Kathryn Varn, Axios, 4 Nov. 2024
If the infection was in Crain’s uterus, the fetus would likely need to be removed with a surgery.
—Lizzie Presser and Kavitha Surana, CNN, 3 Nov. 2024
See all Example Sentences for fetus 
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Angela Andaloro, People.com, 5 Nov. 2024
While the fetus is perceived as a human being, underlines the director, children born around that time haven’t fully developed vital organs, which puts them at high risk, also of future health problems.
—Marta Balaga, Variety, 5 Nov. 2024
Case in point: Thea Thompson, a St. Petersburg mother and nurse who was excited to have a second child, learned last month, at 18 weeks pregnant, that the fetus wasn't going to survive, WUSF reported.
—Kathryn Varn, Axios, 4 Nov. 2024
If the infection was in Crain’s uterus, the fetus would likely need to be removed with a surgery.
—Lizzie Presser and Kavitha Surana, CNN, 3 Nov. 2024
See all Example Sentences for fetus
Dictionary Entries Near fetus
Cite this Entry
“Fetus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fetus. Accessed 24 Nov. 2024.
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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