bilinear UK /baɪˈlɪn.i.ə/US /baɪˈlɪn.i.ɚ/adjective 2noun 1forms 1 adjective2 •Linear (preserving linear combinations) in each variable. •Of or pertaining to a Möbius transformation (type of conformal map representable as the ratio of two linear functions). noun1 •A bilinear function. formsbilinears