adjectiveplānārisPLANARIS☆ KeepMeaningon a level surfaceLewis & Short 1879ModernAs printed, 1879PLANARISLEWIS & SHORTPLANARISplānāris, e, adj. planus, I. on a level surface, flat, plane (post-class.), Mart. Cap. 6, § 708.Read the whole entry