noun a disease of the bile in horses, cattle, and sheep, causing yellowness of the eyes; jaundice.
2. yellows ·noun a disease of plants, ·esp. of peach trees, in which the leaves turn to a yellowish color; jeterus.
3. yellows ·noun a group of butterflies in which the predominating color is yellow. it includes the common small yellow butterflies. called also redhorns, and sulphurs. ·see sulphur.