palingenesy
Pal`in*gen"e*sis, Pal`in*gen"e*sy, n. Etym: [Gr. palingénésie. See Genesis.] 1. A new birth; a re-creation; a regeneration; a continued existence in different manner or form. 2. (Biol.) Defn: That form of evolution in which the truly ancestral characters conserved by heredity are reproduced in development; original simple descent; -- distinguished from kenogenesis. Sometimes, in zoölogy, the abrupt metamorphosis of insects, crustaceans, etc.