sac

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline

Word Origin & History

sac

"biological pocket," 1741, from Fr. sac, from L. saccus "bag" (see sack (n.1)).

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Medical Dictionary

sac (sāk)
n.

A pouch or bursa.
An encysted abscess at the root of a tooth.
The capsule of a tumor or the envelope of a cyst.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage

Science Dictionary

sac

(sāk) Pronunciation Key
A pouch or pouch-shaped structure in an animal or plant, often containing liquids. The human bladder is a sac.

FOLDOC

Computing Dictionary

SAC definition

1. An early system on the Datatron 200 series.
[Listed in CACM 2(5):16 (May 1959)].
(1995-04-12)
2. Service Access Controller.
(2002-12-30)

American Heritage

Abbreviations & Acronyms

SAC

single-attached concentrator
Strategic Air Command

Example sentences from the web

A dacryocystectomy is the surgical removal of a part of the lacrimal sac.

If due to splash injury, it is often present only in the lower conjunctival sac.

The location of presentday cedar rapids was in the territory of the fox and sac tribes.

A cyst is a closed sac having a distinct membrane and division on the nearby tissue.

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"Nearly a million species of animals are already known. Of these, only a few thousand are endowed with anything which can be called intelligence, only a few tens with high intelligence, and only one with conceptual thought. In the same way, there are hundreds of known religions; it had better be left to more orthodox writers than myself to enumerate those which can be called high religions. Animal evolution witnesses to a central upward trend of biological progress; it also shows us the retention of low types along with high, the throwing out of blind-alley side branches of specialisation at every level, and sometimes even degeneration. Religious evolution also shows a central progress—but equally the production of bizarre side-branches, the permanent confining of the religious spirit in low-level embodiments, its projection into every conceivable cul-de-sac, its too frequent bending over from upward to downward growth."

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