bursiform,a.|ˈbɜːsɪfɔːm| [ad.mod.L. bursiformis, f. bursa purse: see -form.] Purse-shaped. 1836Todd Cycl.Anat. & Phys. I. 518/1 note, The Cephalopods of the Foraminiferous Order have a bursiform body.1872Nicholson Palæont. 119 Cup-shaped, pyriform, bursiform, or discoidal.