: 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
Irene Wright, Miami Herald, 25 June 2025
For example, for skin cysts, there are techniques using a laser followed by removal of the sac that allow for smaller incisions and less scarring.6
Other cases may require larger incisions.
—Angela Ryan Lee, Verywell Health, 29 May 2025
That yard is in the middle of a cul de sac completely surrounded by other houses with kids running around and jumping on trampolines.
—Denise Snodell, Kansas City Star, 7 June 2025
Two pairs of the 30 toads recently bred and laid thousands of eggs in long, stringy, gelatinous sacs that days later morphed into tiny tadpoles.
—Adriana Pérez, Chicago Tribune, 3 June 2025
See All Example Sentences for sac
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Noun
Across the regions of West Bengal, India, a group of researchers were on the hunt for the egg sacs of spiders.
—Irene Wright, Miami Herald, 25 June 2025
For example, for skin cysts, there are techniques using a laser followed by removal of the sac that allow for smaller incisions and less scarring.6
Other cases may require larger incisions.
—Angela Ryan Lee, Verywell Health, 29 May 2025
That yard is in the middle of a cul de sac completely surrounded by other houses with kids running around and jumping on trampolines.
—Denise Snodell, Kansas City Star, 7 June 2025
Two pairs of the 30 toads recently bred and laid thousands of eggs in long, stringy, gelatinous sacs that days later morphed into tiny tadpoles.
—Adriana Pérez, Chicago Tribune, 3 June 2025
See All Example Sentences for sac
Cite this Entry
“Sac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sac. Accessed 3 Jul. 2025.
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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