Prester, prestêris, pen pro. m. gen. Plin. A venemous worme called Dipsas. Prester, Plin.A kind of tempest or whyrlewind.
Lewis and Short: Latin dictionary
prēster, ēris, m., = prhsth/r [burning]. I.A fiery whirlwind, which descends in the form of a pillar of fire, a water-spout, sand-spout: presteras Graici quos ab re nominitarunt, etc., Lucr. 6, 424: turbo ardentior accensusque dum furit, prester vocatur, amburens contacta pariter, et proterens, Plin. 2, 48, 50, 133: spiritus cum majore vi torti sunt, fit procella terrestris, et a Graecis prester nomen accepit, App. de Mundo, p. 62 fin.—II.A kind of serpent, whose bite causes a burning thirst: prester quem percusserit, distenditur, enormique corpulentiā necatur extuberatus, Sol. 27, 32: torridus prester, Luc. 9, 791; Plin. 20, 20, 81 210; 24, 13, 73, 117.