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單詞乎

preformation

音標(biāo)[,pri:f?:'mei??n]
preformation是什么意思、preformation怎么讀

preformation漢語(yǔ)翻譯

n. 預(yù)先形成
【醫(yī)】 先成說(shuō), 預(yù)成說(shuō)

preformation英語(yǔ)解釋

名詞 preformation:

  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
    同義詞：theory of preformation

preformation詳細(xì)解釋

pre.for.ma.tion

n.（名詞）
The act of shaping or forming in advance; prior formation.
預(yù)先形成：預(yù)先塑造或形成的行為；預(yù)先形成
A theory popular in the 8th century that all parts of an organism exist completely formed in the germ cell and develop only by increasing in size.
預(yù)成說(shuō)：流行于8世紀(jì)，認(rèn)為生物體的所有部分在生殖細(xì)胞時(shí)已完全成形而成長(zhǎng)時(shí)只是增加尺寸的理論

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