This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Plural form of lung.

"This last bit about the pathological changes in the lungs is a key difference between this infection and influenza."

lungs   

respiratory organ   

miners' lung    grinders'    to try one's lungs    lung suction mask    brown induration of the lungs    black lung    at the top of one's lungs    collier's lung   

lungement   

breather    lights    pulmonary    pulmonal    pulmonic    bellows    archaic    or    informal    italbrac   

Sung    Young    among    bung    clung    dung    flung    fung    hung    overhung   

Liver    stomach    bladder    brain    tissue    intestine    organ    throat    gland    muscle