The Collaborative International Dictionary of English v.0.48:
Vitruvian \Vi*tru"vi*an\, a. Of or pertaining to Vitruvius, an ancient Roman architect. [1913 Webster] Vitruvian scroll (Arch.), a name given to a peculiar pattern of scrollwork, consisting of convolved undulations. It is used in classical architecture. --Oxf. Gloss. [1913 Webster]