sac
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Sac
(săk, sôk)n.
Variant of Sauk.
SAC
abbr.
Strategic Air Command
sac 1
(săk)n.
A pouch or pouchlike structure in an organism, sometimes filled with fluid.
[French, bag, from Old French, from Latin saccus; see sack1.]
sac 2
(săk)n. Baseball
1. A sacrifice fly. Also called sac fly.
2. A sacrifice bunt. Also called sac bunt.
sac
(sæk)n
(Biology) a pouch, bag, or pouchlike part in an animal or plant
[C18: from French, from Latin saccus; see sack1]
ˈsacˌlike adj
SAC
(in Britain) abbreviation for
(Environmental Science) Special Area of Conservation
sac
(sæk)n.
a baglike structure in an animal, plant, or fungus, esp. one containing fluid.
[1735–45; < Latin saccus sack1]
sac′like`, adj.
Sac
(sæk, sɔk)n., pl. Sacs, (esp. collectively) Sac.
SAC
(sæk)n.
Strategic Air Command.
sac
(săk) A bag-like bag in an animal or plant, often containing liquids. The human bladder is a sac.
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Noun | 1. | ![]() enclosed space, cavity - space that is surrounded by something |
2. | sac - a case or sheath especially a pollen sac or moss capsule covering, natural covering, cover - a natural object that covers or envelops; "under a covering of dust"; "the fox was flushed from its cover" | |
3. | ![]() Algonquian, Algonquin - a member of any of the North American Indian groups speaking an Algonquian language and originally living in the subarctic regions of eastern Canada; many Algonquian tribes migrated south into the woodlands from the Mississippi River to the Atlantic coast | |
4. | sac - a structure resembling a bag in an animal yolk sac - membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo umbilical vesicle, vesicula umbilicus, vitelline sac, yolk sac - membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional amnion, amnios, amniotic sac - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals) chorion - the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals) coelenteron - the saclike body cavity of a coelenterate air bladder, swim bladder, float - an air-filled sac near the spinal column in many fishes that helps maintain buoyancy air sac - any of the membranous air-filled extensions of the lungs of birds air sac - any of the thin-walled extensions of the tracheae of insects saccule, sacculus - a small sac or pouch (especially the smaller chamber of the membranous labyrinth) acinus - one of the small sacs or saclike dilations in a compound gland bursa - a small fluid-filled sac located between movable parts of the body especially at joints pouch, pocket - (anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican) vesicle, cyst - a small anatomically normal sac or bladderlike structure (especially one containing fluid) air cell, air sac, alveolus - a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways pericardial sac - the membrane surrounding the heart |