a. Bot. [f. mod.L. Cycadāceæ: see prec. and -ACEOUS.] Of or belonging to the N.O. Cycadaceæ, or cycads.
1837. Penny Cycl., VIII. 248. A Cycadaceous stem partakes in structure of the peculiarities of both Exogens and Endogens.
1876. Page, Adv. Text-bk. Geol., xvii. 327. Cycadaceous plants likewise flourish on the Australian continent.
