serriform,a.|ˈsɛrɪfɔːm| Also erron.serræ-. [f. L. serra saw: see -form.] Saw-shaped, serrate. 1822J. Parkinson Outl. Oryctol. 218 Thirty ribs, with serræform teeth.1895A. H. Cooke Molluscs (Camb. Nat.Hist. III.) 235 Marginals much pectinated and serriform.