lungs
肺 refers to the lungs, the organs responsible for breathing.
肺 combines the flesh radical ⺼ (body part) with 巿, which likely contributes the sound ハイ. Together they indicate a body part with that sound, i.e., the lungs.
The left side ⺼ is a body part, and the right side 巿 looks like a lung with branching airways. Picture the fleshy organ inside the chest.
For ハイ, imagine taking a deep breath and letting out a satisfied 'hai' (like 'hi' but with a relaxed exhale). The sound ハイ matches the exhalation of the lungs.
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lung
pneumonia
heart and lungs
lung cancer
lung capacity; breathing capacity; vital capacity
pulmonary tuberculosis
pulmonary emphysema
lung disease; chest trouble; pulmonary tuberculosis
pneumoconiosis
viral pneumonia
Queensland lungfish (Neoceratodus forsteri)
catarrhal pneumonia
pneumocystis carinii pneumonia
mycoplasma pneumonia
transient pulmonary infiltration
cardiopulmonary bypass; heart-lung machine; CPB pump
artificial lung
extracorporeal membrane oxygenation; ECMO
congenital central hypoventilation syndrome; CCHS
differential lung ventilation; differential pulmonary ventilation