Tilia n. (Bot.) A genus of trees, the lindens, the type of the family Tiliaceae, distinguished by the winglike bract coalescent with the peduncle, and by the indehiscent fruit having one or two seeds. There are about twenty species, natives of temperate regions. Many species are planted as ornamental shade trees, and the tough fibrous inner bark is a valuable article of commerce. Also, a plant of this genus.