Either of two SE Asian trees of the pea family which yield red timber.
紫檀，赤檀；海红豆
Two species in the family Leguminosae: Pterocarpus santalinus, from which a red dye is obtained, and Adenanthera pavonina, whose seeds were formerly used as weights by goldsmiths
Definition of red sandalwood in US English:
red sandalwood
noun
Either of two Southeast Asian trees of the pea family which yield red timber.
紫檀，赤檀；海红豆
Two species in the family Leguminosae: Pterocarpus santalinus, from which a red dye is obtained, and Adenanthera pavonina, whose seeds were formerly used as weights by goldsmiths