piliform,a.|ˈpaɪlɪfɔːm| [ad.mod.L. piliform-is, f.pilus hair: see -form.] Having the form of a hair; hair-like. 1826Kirby & Sp.Entomol. III. xxxv. 649 In most of them the scales of the primary wings are piliform.1828Stark Elem.Nat.Hist. II. 44 Two long tentacula, covered with piliform filaments.