n.
Any of several small trees with aromatic leaves, especially the sweet bay, or bay laurel ( Laurus nobilis ), source of the bay leaf used in cooking.
The California laurel ( Umbellularia californica ) is an ornamental tree also called the bay tree. The bay rum tree, or simply bay ( Pimenta racemosa ), has leaves and twigs that yield, when distilled, oil of bay, which is used in perfumery and in the preparation of bay rum, a fragrant cosmetic and medicinal liquid.