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Any of various gymnosperm plants of the division Gnetophyta, having some features similar to those of angiosperms, such as xylem with vessel elements, and including ephedra.
[From New Latin Gnetophyta, division name, from Gnetum, type genus, from Ternatese (Papuan language of Ternate) ganemu, a species of tree (Gnetum gnemon) widespread in Southeast Asia and the Pacific islands and valued for its edible seeds.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Plants) any gymnosperm plant of the phylum Genetophyta, which includes three genera: Gnetum, consisting of small tropical trees and vines, Ephedra (see ephedra), and Welwitschia (see welwitschia)