gibberose,a.rare—0.|ˌgɪbəˈrəʊs| [ad. L. gibberōs-us, f.gibber a hump.] ‘More convex or tumid in one place than another’ (Treas.Bot. 1866). Hence gibbeˈrosity. 1727Bailey vol. II, Gibberosity.1880Gray Struct.Bot. 413/1 Gibbous..swelling out on one side into a gibber or gibberosity.