| Noun | 1. | family Ginkgoaceae - constituting the order Ginkgoales; includes the genus Ginkgo and extinct forms gymnosperm family - a family of gymnosperms Ginkgoales, order Ginkgoales - coextensive with the family Ginkgoaceae: plants that first appeared in the Permian and now represented by a single surviving species; often included in Coniferales genus Ginkgo - sole surviving genus of the Ginkgoaceae |