We found 2 definitions of preformations from 1 different sources.
NounPlural: preformations |
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preformation - a theory (popular in the 18th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell | ||
theory of preformation | ||
theory a belief that can guide behavior; "the architect has a theory that more is less"; "they killed him on the theory that dead men tell no tales" |