Definition of SAC in English:

SAC

  • Strategic Air Command.

Pronunciation:

SAC

/sak/

Definition of Sac in English:

Sac

noun

  • 1A hollow, flexible structure resembling a bag or pouch.

    ‘a fountain pen with an ink sac’
    • ‘Rain Reviva is a system of flexible plastic sacs for storing rainwater - or recycling waste water - under the house.’
    • ‘Reseal the plastic sac and leave it rocking for 1 h at room temperature.’
    • ‘The production of the plastic sac requires the use of the special production facilities, whereas the filling of the plastic sac with a specific kind of gas also calls for the use of the special equipment.’
    • ‘As the air filled the sac, the balloon took on an impossibly long shape.’
    bag, pouch, bladder, blister
    bursa, acinus, follicle, cyst, saccule, utricle, vesicle, vesica, vesicula, theca, liposome
    View synonyms
    1. 1.1A cavity enclosed by a membrane within a living organism, containing air, liquid, or solid structures.
      • ‘At 8:30 AM, the obstetrician manually broke the patient's amniotic fluid sac in an effort to speed up labor.’
      • ‘These protein and lipid molecules are then transported inside lysosomes -- minute, balloon-like sacs within the cell.’
      • ‘The female was fed one cricket per day until an egg sac was produced.’
      • ‘Sepia comes from the Greek word for the rich reddish-brown pigment obtained from a fluid that is secreted by the cuttlefish from their ink sac.’
      • ‘Each anther cone was gently agitated to release the pollen sacs into the dye solution.’
      • ‘And I think the blisters resemble pomelo pulp sacs.’
      • ‘This is particularly noticeable in the knee and hip where we have big fluid sacs.’
      • ‘Tests have also shown that if a needle is placed into the sac and touches the baby, the baby feels pain and will immediately move away.’
      • ‘‘Surfactant keeps the tiny air sacs in the lungs open,’ Hein says.’
      • ‘The yolk sac was completely absorbed, but the site of attachment was still visible.’
      • ‘If chemicals are splashed into the eye, the eye and the conjunctival sacs should be washed out immediately with copious amounts of water.’
      • ‘The amniotic sac that contains your baby begins to form about 12 days after conception.’
      • ‘In human beings, the testis is located outside the body in the scrotal sac.’
      • ‘Fistulas commonly extend from the rectal sac to the perineum or genital tract in a female, or to the urinary tract in a male.’
      • ‘Worst bit: having to take out the squid's ink sac.’
      • ‘The ink sac can make cleaning the squid a bit messy, but all it needs is a good rinse and it's gone.’
      • ‘For example, the tiny air sacs in lungs expand more than seven times when you inhale.’
      • ‘Scientists also suspect that air pollutants might dampen the growth of alveoli, tiny air sacs in the lungs.’
      • ‘In the field of biology, biochemists have been studying vesicles, the small membrane sacs found within cells.’
      • ‘Fish make the popping noises by sending air through different chambers of their swim bladders, the inflatable sacs that help fish float.’
    2. 1.2The distended membrane surrounding a hernia, cyst, or tumor.
      • ‘This procedure meant cutting directly into the back of the knee, tying the damaged artery above and below the aneurysm and scraping out the blood-filled sac.’
      • ‘Prior to this Claudius Amyand, physician to Queen Anne, in 1736 successfully removed an acutely inflamed appendix from inside the hernial sac of a young boy.’
      • ‘In the vicinity of this mass, there was a hernia sac.’
      • ‘If there is a recurrence (which unfortunately does often happen) then operative removal of the cyst and its sac becomes necessary.’
      • ‘A visit to the local hospital did not improve matters as the doctor inadvertently punctured a small sac in his elbow which required extensive treatment back in Melbourne.’
      • ‘PCOS is a hormone problem that can cause the ovaries to become enlarged and develop fluid-filled sacs.’
      • ‘A cyst is a fluid-filled sac that can grow in any part of the body.’
      • ‘Alternatively, they can be drained with a needle and syringe, although the sac of the hydrocele may fill with fluid again after a few months.’
      • ‘They are swollen, fluid-filled sacs which often become enlarged and painful.’
      • ‘On physical examination, a swollen, fluid-filled sac is noted and palpated over the olecranon.’
      • ‘Essentially, an ovarian cyst is nothing more than a fluid-filled sac, like a blister, on an ovary.’
      • ‘A breast cyst is a fluid-filled sac, like a tiny balloon, inside the breast.’
      • ‘If the leak persists or the aneurysmal sac enlarges, intervention becomes necessary.’
      • ‘As people get older, fluid-filled sacs, called ‘cysts,’ can form in the kidneys.’
      • ‘In the distal folds of the hernia sac, a small erosion was noted.’

Origin

Mid 18th century (as a term in biology): from French sac or Latin saccus sack, bag.

Pronunciation:

Sac

/sak/