(mɛˈtæpləsɪs) n (Biology) obsolete the second of three stages of ontogenetic development proposed by Ernst Heinrich Haeckel, in which the development of the individual is complete
metaplasis
me·tap·la·sis
(mĕ-tap'lă-sis), 1. The stage of completed growth or development of the individual. 2. Synonym(s): metaplasia [G. a transformation]
metaplasis
(1) Metaplasia. (2) A term of waning use for a state of completed growth.