- any gymnospermous plant of the order Cycadales, intermediate in appearance between ferns and the palms, many species having a thick, unbranched, columnar trunk bearing a crown of large, leathery, pinnate leaves.
Origin of cycad
Examples from the Web for cycad
Historical Examples of cycad
Palms are so like cycads that we may regard them as the descendants of some cycad type.The Elements of Geology
William Harmon Norton
The anatomy of the main stem is very suggestive of that of a Cycad.Ancient Plants
Marie C. Stopes
But the most frequent and characteristic tree of the Jurassic landscape is the cycad.The Story of Evolution
Cycad, sī′kad, n. an order allied to Conifer, but in appearance rather resembling ferns and palms.
There has been found at Luccombe a very remarkable fruit of a kind of cycad.The Geological Story of the Isle of Wight
J. Cecil Hughes
- any tropical or subtropical gymnosperm plant of the phylum Cycadophyta, having an unbranched stem with fernlike leaves crowded at the topSee also sago palm (def. 2)
Word Origin for cycad
Word Origin and History for cycad
1845, Modern Latin, from Greek kykas, a word found in Theophrastus, but now thought to be a scribal error for koikas "palm trees," accusative plural of koix, a word from an unknown non-Greek language.
- Any of various evergreen plants that live in tropical and subtropical regions, have large feathery leaves, and resemble palm trees in that most leaves cluster around the top of the stem. Cycads are gymnosperms that bear conelike reproductive structures at the top of the stem, with male and female cones borne on different plants. Cycads were common in many parts of the Earth during the Jurassic Period and survive today in about 250 species. Sago palms are cycads.