sac

1 of 4

noun

: a pouch within an animal or plant often containing a fluid
a synovial sac
saclike adjective

sac

2 of 4

abbreviation (1)

sacrifice

Sac

3 of 4

variant of sauk

SAC

4 of 4

abbreviation

1
special agent in charge
2
Strategic Air Command

Examples of sac in a Sentence

Recent Examples on the Web
Noun
The baby was soon diagnosed with giant omphalocele, a birth defect of the abdominal wall, in which abdominal contents protrude into a thin-walled sac outside of the abdominal cavity, according to the NIH. Wendy Grossman Kantor, Peoplemag, 5 Mar. 2024 Vacuuming or sweeping can remove spiders, webs, and egg sacs effectively. Jake Parks, Discover Magazine, 13 Feb. 2024 The new species was identified by its size, body shape, vocal sac and coloring, the study said. Aspen Pflughoeft, Miami Herald, 5 Feb. 2024 Totes and the takeout bags—the bottom-tier sacs that hold our leftovers, uncapped pens, and crumpled up receipts—are the real heroes of the day. Hannah Jackson, Vogue, 31 Jan. 2024 Extracellular vesicles are fatty sacs of genetic material that are released by every tissue in the body, including the brain. Angela Roberts, Baltimore Sun, 9 Feb. 2024 These tiny sacs contain xanthommatin, a natural dye. Naomi Greenberg, Smithsonian Magazine, 29 Dec. 2023 Therapeutic mRNAs enter cells using endosomes – sacs made of the cell’s membrane that take in materials from the cell’s environment. Discover Magazine, 8 Jan. 2024 No one is shot on The Challenge, but exploding ink sacs mimic sprays of blood when a player is eliminated. Angie Han, The Hollywood Reporter, 21 Nov. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sac.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun

French, literally, bag, from Latin saccus — more at sack

First Known Use

Noun

1741, in the meaning defined above

Time Traveler
The first known use of sac was in 1741

Dictionary Entries Near sac

Cite this Entry

“Sac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sac. Accessed 19 Mar. 2024.

Kids Definition

sac

noun
ˈsak
: a pouch in an animal or plant often containing a fluid
a food-storage sac
saclike
-ˌlīk
adjective

Medical 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

More from Merriam-Webster on sac

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!