ˈnaupliiform,a.Zool. [f. naupli-us + -iform.] Having the form of a nauplius. 1869W. S. Dallas tr.F. Müller's Facts for Darwin 17 Early Naupliiform stages of the higher Crustacea.1870H. A. Nicholson Man.Zool. (1875) 236 The larvæ are ‘Naupliiform’, with an ovate unsegmented body.