WordNet
subdivision Ginkgophytina
n. ginkgos: in some systems classified as a class (Ginkgopsida) and in others as a subdivision (Ginkgophytina or Ginkgophyta); used in some classifications for one of five subdivisions of Gymnospermophyta [syn: Ginkgopsida, class Ginkgopsida, Ginkgophytina, Ginkgophyta]