Source : WordNet®

lime tree
     n 1: any of various related trees bearing limes [syn: {lime}, {Citrus
          aurantifolia}]
     2: any of various deciduous trees of the genus Tilia with
        heart-shaped leaves and drooping cymose clusters of
        yellowish often fragrant flowers; several yield valuable
        timber [syn: {linden}, {linden tree}, {basswood}, {lime}]