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  

abbreviation

1. Special Area of Conservation

---

sac ² British  

/ sæk /

noun

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

---

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

The scientists also found significant changes in epithelial cells that line the lungs and the tiny air sacs responsible for breathing.

From Science Daily

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

Related Words

• cyst