yin and yang(redirected from Yang deficiency)
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Yin and Yang(jɪn)
(Philosophy) two complementary principles of Chinese philosophy: Yin is negative, dark, and feminine, Yang positive, bright, and masculine. Their interaction is thought to maintain the harmony of the universe and to influence everything within it
[from Chinese (Peking) yin dark + yang bright]
yin′ and yang′
(in Chinese philosophy and religion) two principles, one negative, dark, and feminine (yin), and one positive, bright, and masculine (yang), whose interaction influences the destinies of creatures and things.
[1930–35; < Chinese yīn-yáng]