protyl

Noun

 * 1) * 1918, E. H. R., Abstract of Curt Schmidt, "The Periodic System and Genesis of the Elements", in Journal of the Chemical Society, vol. 114, part 2, 1918, p. 305–306
 * Two principles are postulated, according to which the elements have probably been evolved: (1) the ontogenic principle, involving the formation of the primary members of the different groups by direct condensation of protyl; (2) the phytogenetic principle, by which the higher members of the groups are developed from the lower by a process of integration.
 * Two principles are postulated, according to which the elements have probably been evolved: (1) the ontogenic principle, involving the formation of the primary members of the different groups by direct condensation of protyl; (2) the phytogenetic principle, by which the higher members of the groups are developed from the lower by a process of integration.