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preformation

n. 预先形成

预先形成

WordNet (r) 3.0 (2006) (WordNet)

preformation
n 1: 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 [synonym: {preformation}, {theory of preformation}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Preformation \Pre`for*ma"tion\, n. (Biol.)
An old theory of the pre["e]xistence of germs. Cf.
{Embo[^i]tement}.
[1913 Webster]

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preformation	查看　preformation　在Google字典中的解释	Google英翻中〔查看〕
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英文字典中文字典相关资料:

Preformationism - Wikipedia
Preformationists suggested that all organisms were created at the same time, and that succeeding generations grow from homunculi, or animalcules, that have existed since the beginning of creation, which is typically defined by religious beliefs
PREFORMATION Definition Meaning - Merriam-Webster
The meaning of PREFORMATION is previous formation
Preformationism in the Enlightenment - The Embryo Project Encyclopedia
Preformationism was a theory of embryological development used in the late seventeenth through the late eighteenth centuries This theory held that the generation of offspring occurs as a result of an unfolding and growth of preformed parts
Preformation theory | biology | Britannica
…Bonnet and Spallanzani accepted the preformation theory According to their version of this theory, the germs of all living things were created by God in the beginning and were encapsulated within the first female of each species
Preformation theory - Wikipedia
Preformation theory is a theistic epistemological theory that states that knowledge is possible only because God has endowed humans with certain innate ideas along with dispositions or aptitudes in certain ways
Theories of Biological Development - Stanford Encyclopedia of Philosophy
Preformation, in contrast, is the thesis that development begins with the entity in some way already preformed, or predelineated, or predetermined The question “epigenesis or preformation?” is in part metaphysical: what is it that exists—form or also the unformed that becomes the formed?
The Science of Preformation - numberanalytics. com
Preformation theory is a historical scientific theory that posits that the form and structure of an organism are predetermined in the germ cells, either in the egg or the sperm
Preformationism
Preformationism is the theory that all organisms were created at the same time, and that succeeding generations grow from homunculi, animalcules, or other fully-formed but miniature versions of themselves that have existed since the beginning of creation
Perfect Preformation Theory: Why This Old Idea Still Has Modern . . .
Preformation theory, dating back to the 17th century, posited that all living organisms —from humans to insects—already exist in a miniature, fully formed state within their parents
PREFORMATION Definition Meaning | Dictionary. com
PREFORMATION definition: previous formation See examples of preformation used in a sentence

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