ginkgoales

from The Century Dictionary.

• An order of gymnospermous plants containing the family Ginkgoaceæ only (which see). See also Ginkgo, Jeanpaulia, Whittleseya, and Cordaitales.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun coextensive with the family Ginkgoaceae: plants that first appeared in the Permian and now represented by a single surviving species; often included in Coniferales