lung

19 ENTRIES FOUND:

lung

noun \ˈləŋ\

: either one of the two organs that people and animals use to breathe air

Full Definition of LUNG

1
a :  one of the usually paired compound saccular thoracic organs that constitute the basic respiratory organ of air-breathing vertebrates
b :  any of various respiratory organs of invertebrates
2
a :  a device enabling individuals abandoning a submarine to rise to the surface
b :  a mechanical device for regularly introducing fresh air into and withdrawing stale air from the lung :  respirator — compare iron lung
lung·ful \-ˌfl\ noun

Examples of LUNG

  1. He filled his lungs with the clean. fresh air.

Origin of LUNG

Middle English lunge, from Old English lungen; akin to Old High German lungun lung, līhti light in weight — more at light
First Known Use: before 12th century

Rhymes with LUNG

lung

noun \ˈləŋ\   (Medical Dictionary)

Medical Definition of LUNG

1
a : one of the usually two compound saccular organs that constitute the basic respiratory organ of air-breathing vertebrates, that normally occupy the entire lateral parts of the thorax and consist essentially of an inverted tree of intricately branched bronchioles communicating with thin-walled terminal alveoli swathed in a network of delicate capillaries where the actual gaseous exchange of respiration takes place, and that in humans are somewhat flattened with a broad base resting against the diaphragm and have the right lung divided into three lobes and the left into two lobes b : any of various respiratory organs of invertebrates
2
: a mechanical device for regularly introducing fresh air into and withdrawing stale air from the lungs : respirator—see iron lung
lunged adjective

Illustration of LUNG

lung

noun    (Concise Encyclopedia)

Either of two light, spongy, elastic organs in the chest, used for breathing. Each is enclosed in a membrane (pleura). Contraction of the diaphragm and the muscles between the ribs draw air into the lungs through the trachea, which splits into two primary bronchi, one per lung. Each bronchus branches into secondary bronchi (one per lobe of lung), tertiary bronchi (one per segment of lung), and many bronchioles leading to the pulmonary alveoli. There oxygen in the inspired gas is exchanged for carbon dioxide from the blood in the surrounding capillaries. Adequate tissue oxygen supply depends on sufficient distribution of air (ventilation) and blood (perfusion) in the lungs. Lung injuries or diseases (e.g., emphysema, embolism, pneumonia) can affect either or both.

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