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Definitions of cycad
  1. noun
    any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
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Definition that contains cycad
  • frond compound leaf of a fern or palm or cycad
  • cycad any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
  • zamia any of various cycads of the genus Zamia; among the smallest and most verdant cycads
  • burrawong large attractive palmlike evergreen cycad of New South Wales
  • ceratozamia a small cycad of the genus Ceratozamia having a short scaly woody trunk and fernlike foliage and woody cones; Mexico
  • class cycadopsida palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)
  • class gymnospermae plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida)
  • cordaitales extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era
  • cordaites tall Paleozoic trees superficially resembling modern screw pines; structurally intermediate in some ways between cycads and conifers
  • cycadophyta palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)
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