rare. ? Obs. Also thirsé. [Properly tirsé (Forskål, 1775), tyrsé (G. Saint-Hilaire and Cuvier), ad. Arab. tirsah, f. urs shield.] The Egyptian soft-billed turtle, Testudo triunguis.
1807. Hunter, trans. Sonninis Trav. in Egypt, I. 301. The advantage with which this thirsé of the Egyptians and Nubians wages war with the crocodile.
1834. McMurtrie, Cuviers Anim. Kingd., 171. T. Ægyptiacus. The Tyrse.
1839. Encycl. Brit. (ed. 7), XIX. 132/2. The Egyptian species or tyrse, the soft turtle of the Nile.