noun. a colorless crystalline substance obtained from the bile of mammals.
1. Noun, singular or mass On the other hand, dogs can make their own taurine so dog foods are deficient in this nutrient that is so vital to cats. 2. Verb, base form In addition to taurine, plant-based food also cannot provide arachidonic acid, vitamin A, and vitamin B12, all-important components for optimum health.