Question

What do you mean by sac in very short answer? ​

Answer 1

Answer:

sac is a small part of an animal's body, shaped like a little bag. It contains air, liquid, or some other substance. The lungs consist of millions of tiny air sacs. Synonyms: pouch, bag, pocket, bladder More Synonyms of sac..

Answer 2

Hey mate,

SAC: A bag-like structure in an animal, plant or fungus, as one containing fluid.