| Spadix 1. (n.) A fleshy spike of flowers, usually enclosed in a leaf called a spathe. 2. (n.) A special organ of the nautilus, due to a modification of the posterior tentacles. Thesaurus Entries born fool, capitulum, catkin, clot, cone, congenital idiot, corymb, cretin, cyme, defective, golem, half-wit, head, idiot, imbecile, juggins, mongoloid idiot, moron, natural, natural idiot, natural-born fool, panicle, pine cone, raceme, simp, simpleton, spadix, spike, spikelet, strobile, thyrse, umbel, verticillaster, zany |