Any of the liver-generated steroid acids, such as cholic acid, that commonly occur in the bile in combination with glycine and taurine as sodium salts.

• 胆汁酸：由肝脏产生的任一种固醇酸，如胆酸，一般存在于胆汁中，与甘氨酸和牛磺酸化合成钠盐