monocyclous,a.Conch.rare—0.|mɒnəʊˈsɪkləs| [f.mod.L. monocycl-us (formed as monocycle) + -ous.] (See quot.) 1856Mayne Expos.Lex., Monocyclus, applied to the Scalaria monocycla, because its last turn is circumscribed at the base by a transversal filament: monocyclous.