lung; the breathing organ in the chest of humans and many animals, also called 肺脏 fèi​zàng

(bound form) root; origin; the starting cause or basis of something

Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".

any disease or abnormality of the heart, its structure, or its function