yin

1. N-UNCOUNT In Chinese philosophy, yin is one of the two opposing principles whose interaction is believed to influence everything in the universe. Yin is negative, dark, and feminine, while yang is positive, bright, and masculine. (中國哲學的)陰

...a perfect balance of yin and yang. ...陰陽的絕對平衡。

...a silver chain with a ying-yang symbol. ...一條帶有陰陽符號的銀鏈子。