Webster's Revised Unabridged Dictionary · 1913

Yellows

Yellows , noun

1.
(Farriery) 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. — Shakespeare
2.
(Botany) A disease of plants, esp. of peach trees, in which the leaves turn to a yellowish color; jeterus.
3.
(Zoology) 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.