Origin of preformation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for preformation
Preformation, identical with the original meaning of evolution, which see.
Preformation: the doctrine of growth or development from already existing rudiments; opposed to epigenesis: q.v.Explanation of Terms Used in Entomology
John. B. Smith
Let us first cast a historical glance at the older ontogeny, and the theory of preformation which is connected with it.
In this respect it is like its predecessor, the theory of preformation of the eighteenth century.
His shrewd comment on the preformation notion of development has been quoted (p. 20).Pioneers of Evolution from Thales to Huxley
- the act of forming in advance; previous formation
- biology the theory, now discredited, that an individual develops by simple enlargement of a fully differentiated egg cellCompare epigenesis (def. 1)