: a pouch within an animal or plant often containing a fluid
a synovial sac
sacrifice
Sac
3 of 4variant of sauk
1
special agent in charge
2
Strategic Air Command
Examples of sac in a Sentence
Recent Examples on the Web
Aliza Chasan, CBS News, 18 Sep. 2024
McVay said a few days later that a bursa sac in Nacua’s knee had burst.
—Gary Klein, Los Angeles Times, 9 Sep. 2024
The sac does not dissolve after releasing the egg (corpus luteum cyst).
—Heather Jones, Verywell Health, 14 Aug. 2024
Endolymphatic sac shunting: People with Meniere's disease have fluid build-up in the inner ear that can lead to tinnitus, dizziness, and hearing issues.
—Carley Millhone, Health, 20 Oct. 2024
See all Example Sentences for sac 
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Noun
Female Joro spiders, known for their yellow and gray abdomens, will lay egg sacs holding 400 to 500 eggs.
—Aliza Chasan, CBS News, 18 Sep. 2024
McVay said a few days later that a bursa sac in Nacua’s knee had burst.
—Gary Klein, Los Angeles Times, 9 Sep. 2024
The sac does not dissolve after releasing the egg (corpus luteum cyst).
—Heather Jones, Verywell Health, 14 Aug. 2024
Endolymphatic sac shunting: People with Meniere's disease have fluid build-up in the inner ear that can lead to tinnitus, dizziness, and hearing issues.
—Carley Millhone, Health, 20 Oct. 2024
See all Example Sentences for sac
Dictionary Entries Near sac
Cite this Entry
“Sac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sac. Accessed 21 Nov. 2024.
Copy CitationMedical Definition
sac
noun
: a soft-walled anatomical cavity usually having a narrow opening or none at all and often containing a special fluid
a synovial sac
see air sac, amniotic sac, dental sac, lacrimal sac
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