(n) type genus of Cycadaceae: genus of widely distributed Old World evergreen tropical trees having pinnate leaves and columnar stems covered with persistent bases of old leaves, Syn.genus Cycas
n. a natural family of ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids. Syn. -- family Cycadaceae, cycad family. [ WordNet 1.5 ]
n. an order of primitive tropical gymnosperms abundant in the Mesozoic, now reduced to a few scattered tropical forms. Syn. -- order Cycadales. [ WordNet 1.5 ]
n. an order of fossil gymnospermous trees or climbing plants from the Devonian: seed ferns. Syn. -- order Cycadofilicales, Lyginopteridales, order Lyginopteridales. [ WordNet 1.5 ]
n. a class or subdivision of plants comprising palmlike gymnosperms: it 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). Syn. -- class Cycadopsida, subdivision Cycadophytina, subdivision Cycadophyta. [ WordNet 1.5 ]
n. [ Of uncertain origin. Linnæus derives it from one of the “obscure Greek words.” ] (Bot.) A genus of trees, intermediate in character between the palms and the pines. The pith of the trunk of some species furnishes a valuable kind of sago. [ 1913 Webster ]
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เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
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