| Noun | 1. | plane tree - any of several trees of the genus Platanus having thin pale bark that scales off in small plates and lobed leaves and ball-shaped heads of fruitslacewood, sycamore - variably colored and sometimes variegated hard tough elastic wood of a sycamore tree tree - a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms | |