LUNG

[noun] [C] - either of the two organs in the chest with which people and some animals breatheShe breathed deeply to fill her lungs with the fresh sea air.Smoking causes lung cancer.(figurative) The Amazon rain forest is sometimes referred to as the lungs of the Earth (= the trees in it produce oxygen that the Earth needs).(humorous) That baby has good lungs/a good pair of lungs/a healthy pair of lungs (= can shout and cry very loudly).