Nantoka/脯氨酸pú ān suān脯氨酸 (pú ān suān) is a Chinese word meaning “proline (Pro), an amino acid”.Meanings1proline (Pro), an amino acidCharacters in 脯氨酸脯fǔ · dried meat氨ān · ammonia酸suān · sourRelated words酸sour酸奶yogurt氨ammonia胸脯chest硫酸sulfuric acid H2SO4尖酸harsh盐酸hydrochloric acid HCl碳酸carbonic acid寒酸wretched脂肪酸fatty acid酸痛to ache胃酸gastric acidStudy Chinese with flashcards →