preformation
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preformation

[-fôrmā′shən]

Etymology: L, prae + formatio, formation

an early theory in embryology in which the organism is contained in minute and complete form within the germ cell and after fertilization grows from microscopic to normal size. Compare epigenesis.

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epigenesis Harvey homunculus preformation theory Wolff			Preformationism has entered the canon of the history of science as something of a joke, its theories of homunculi (tiny figures observed inside sperm) and the aura seminalis (a mysterious energizing essence in semen) treated as the subjects of ridicule. The Ovary of Eve: Egg and Sperm and Preformation by Thomas, Joe A. / The Journal of Sex Research Preformationism was not, however, merely a rash extension of microscopy; it seemed the rational alternative to its only basic rival: epigenesis. The Ovary of Eve: Egg and Sperm and Preformation by O'Brien, Dennis / Commonweal			predonated autologous blood predonation preductal preeclampsia Preeclampsia and Eclampsia preejection preejection period preemie preemptive analgesia preemptive chemotherapy preen gland Preening Behaviour preeruptive preexcitation Preexcitation Syndrome preexisting condition preextraction cast preextraction record preferential anosmia preferred name preferred provider organization prefiling of fees prefloxacin preformation preformation theory Preformationism preformed water prefrontal prefrontal area prefrontal lobotomy preg pregabalin preganglionic preganglionic motor neuron preganglionic neuron pregenital Pregestimil Pregl preglomerular pregnable pregnancy Pregnancy category Pregnancy category B Pregnancy category C pregnancy epulis pregnancy gingivitis pregnancy granuloma pregnancy luteoma pregnancy rate Pregnancy safety categories Pregnancy Suspension			prefixations prefixed prefixed prefixes prefixes prefixing prefixing prefixion prefixion Preflashing preflight preflight Preflight Built in Test Preflight Data Insertion Program Preflight Information Bulletin Preflight Integration of Munitions & Electronic Systems preflighted preflighting preflights Prefloration prefloxacin prefocus lamp Prefoliation Prefoliation preform preform preformation preformation preformation Preformation theory Preformationism preformationist preformationist preformationist preformationists preformationists preformationists Preformative Preformatted Text preformed preformed preformed asphalt joint filler Preformed Beam preformed catheter preformed catheter preformed catheter preformed foam preformed joint sealant Preformed Line Products Preformed Line Products Company preformed sealant preformed water preforming preforming Preformism preforms preforms Prefragmented High-Explosive Prefreshman Summer Science Program prefrontal prefrontal

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preformation (redirected from Preformationism)

preformation
(redirected from Preformationism)