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preformism

preformism Preformism is a theory of development holding that the adult organism is already represented in the germ, so development is mainly the unfolding, sorting, and growth of what is already there rather than the creation of genuinely new parts.

Preformism is a theory of development holding that the adult organism is already represented in the germ, so development is mainly the unfolding, sorting, and growth of what is already there rather than the creation of genuinely new parts. In its older form, it claimed the adult parts existed in miniature; in its newer form, it says the germ contains definite material elements or regions corresponding to later body parts.

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Sources

Drafting source: Baldwin, Dictionary of Philosophy and Psychology, volume II. 1902 original US edition; OCR SHA-256 b86b5dbbaa0a0b3ecf6c8b0a089a7ca5409b9bac4e6481cba91c99bba16f31bd. “Baldwin, Dictionary of Philosophy and Psychology, volume II” (philopsych02balduoft:chars-1879500-1891500).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: b86b5dbbaa0a0b3ecf6c8b0a089a7ca5409b9bac4e6481cba91c99bba16f31bd

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “preformism.” Development preview.

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