Definition of "lungs" []

• Either one of a pair of spongy saclike respiratory organs within the thorax of higher vertebrates, which oxygenate the blood and remove its carbon dioxide (noun)
• Any similar or analogous organ in other vertebrates or in invertebrates (noun)
• Plural form of lung. (noun)

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• "Too often it does not confine its ravages to the external parts, but it attacks the vital parts; when it affects the lungs it is called consumption, and I wish this to be particularly understood, that _consumption is neither more nor less than scrofula of the lungs_."
• "The quantity of air which we take into our lungs at each inspiration, is about 40 cubic inches, which contain a little less than 10 cubic inches of oxygen; and of those 10 inches, one-eighth is converted into carbonic acid gas on passing once through the lungs*, a change which is sufficient to prevent air which has only been breathed once from suffering a taper to burn in it."
• "This last bit about the pathological changes in the lungs is a key difference between this infection and influenza."