emboîtement

(redirected from Preformation theory)
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emboîtement

(ɑ̃bwatmɑ̃)
n
the theory, no longer believed, that an egg encases the germs of all future descendants that might develop from that egg, each germ being encased within another germ
References in periodicals archive ?
Preformation theory required that the motive force for a new being come from either the mother or the father, since the new being was envisioned as already complete.
The finest sections of the book are where the author describes the seemingly ludicrous experiments that led to preformation theory, which she does with both humour and appreciation for their scientific rigour.