Associations to the word «Preformation»

Wiktionary

PREFORMATION, noun. Prior formation.
PREFORMATION, noun. (biology) (historical) The theory that organisms are fully developed in the form of an egg or seed, and just increase in size (as opposed to epigenesis.

Dictionary definition

PREFORMATION, noun. 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.

Wise words

A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.