Cycadaceae cy·ca·da·ceae uncommon noun 1. ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids Synonymsfamily Cycadaceaecycad family Related words Broader terms gymnosperm family Parts Cycadales Part of Cycas WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
