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Synonyms

sac

1 American  
[sak] / sæk /

noun

  1. a baglike structure in an animal, plant, or fungus, as one containing fluid.

Sac 2 American  
[sak, sawk] / sæk, sɔk /

noun

plural

Sacs,

plural

Sac

  1. Sauk.

SAC 3 American  
[sak] / sæk /
Or S.A.C.

noun

  1. Strategic Air Command.

sac 1 British  
/ sæk /

noun

  1. a pouch, bag, or pouchlike part in an animal or plant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
SAC 2 British  

abbreviation

  1. Special Area of Conservation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
sac Scientific  
/ săk /

  1. A pouch or pouch-shaped structure in an animal or plant, often containing liquids. The human bladder is a sac.

Other Word Forms

  • saclike adjective

Etymology

Origin of sac

First recorded in 1735–45; from Latin saccus “bag, sackcloth”; sack 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In these cases, the sheer size of the cell and the presence of a large yolk sac prevent the actin ring from fully closing.

From Science Daily

Caitlin and Grace were in different amniotic sacs in the womb, so their parents believed they were fraternal twins.

From BBC

At the inquest on Monday, the court also shown photographs of the area behind a number of houses on the cul de sac.

From BBC

At Cedars-Sinai, the research advanced further when Ahmed Ibrahim, PhD, MPH, discovered that heart progenitor cells release small sacs filled with biological molecules.

From Science Daily

Meanwhile, the cul de sac, a street design much in favor with the architects of suburban developments, have become artificial catchments for these highly flammable weeds.

From The Wall Street Journal

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.