maidenhair tree(n = noun.plant) gingko, ginkgo, ginkgo biloba - deciduous dioecious Chinese tree having fan-shaped leaves and fleshy yellow seeds; exists almost exclusively in cultivation especially as an ornamental street tree;
A deciduous dioecious gymnospermous Chinese tree (Ginkgo biloba) having fan-shaped leaves and fleshy yellow seeds, also called the ginkgo; it exists almost exclusively in cultivation esp. as an ornamental street tree. [WordNet 1.5]