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see Sac and FoxSac and Fox,
closely related Native Americans of the Algonquian branch of the Algonquian-Wakashan linguistic stock (see Native American languages). Sac and Fox culture was of the Eastern Woodlands area with some Plains-area traits (see under Natives, North American).
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A soft-walled cavity within a plant or animal, often containing a special fluid and usually having a narrow opening or none at all.
Indentation in the contour lines of equal depth showing submarine relief.


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


1. An early system on the Datatron 200 series.

[Listed in CACM 2(5):16 (May 1959)].
References in periodicals archive ?
Relationship* between degree-days and dry yolk-sac fry weight, and degree-days and dry yolk sac weight.
Anal sac disease can occur alone or with any disease that brings anal-area irritation or inflammation--such as diarrhea, upset stomach or other gastrointestinal diseases that impact the firmness of stools.
The most drastic treatment for repeated, chronic anal-sac infections is surgery to remove the sacs.
Abu Misri Mama, spokesman of the BIFF, confirmed reports that the group was able to "wipe out" the 55th SAC as early as 8 a.
SAC Capital said in a statement: ''We take responsibility for the handful of men who pleaded guilty and whose conduct gave rise to SAC's liability.
SAC Capital had begun seeking buyers for the operation shortly after the government filed in July criminal insider trading charges against the hedge fund, the WSJ said.
Wobbles may have anal sacs that have filled with normal glandular secretions or the sacs may have become infected.
The SAC continue to meet in London three times a year in an effort to advise and support the members of the various Branches they serve.
An excellent 14-page appendix section includes a SAC Wing Insignia and Squadron Marking Reference Table and the SAC Order of Battle with Tail Markings.
The characteristic lifetimes of SAC 305, SAC 105 and SCN are 45, 112 and 51 drops, respectively.
Endolymphatic sac tumors (ELSTs) are extremely rare, slowly growing, low-grade adenocarcinomas that are associated with von Hippel-Lindau (VHL) disease.
4 -- color -- ran in SAC edition only) Smoke, above right, from the fire rises above Castaic Lake, where weary firefighters head to sleep away from the smoke.