1. (Science: veterinary) A disease of the bile in horses, cattle, and sheep, causing yellowness of the eyes; jaundice. His horse . . . Sped with spavins, rayed with the yellows. (Shak)
2. (Science: botany) A disease of plants, especially. Of peach trees, in which the leaves turn to a yellowish colour; jeterus.
3. (Science: zoology) A group of butterflies in which the predominating colour is yellow. It includes the common small yellow butterflies.
Synonym: redhorns, and sulphurs. See Sulphur.