epigenesis

n. 后成, 渐成说
【医】 渐成说

形容词:epigenetic 

ep.i.gen.e.sis

n.（名词）
Biology The theory that an individual is developed by successive differentiation of an unstructured egg rather than by a simple enlarging of a preformed entity.
【生物学】 渐成说：一种以为个体是由一个没有组织的卵子经过连续变异生长而成， 而非一个整体简单扩张形成的理论
Geology Change in the mineral content of a rock because of outside influences.
【地质学】 外力变质：因外部影响而使岩石的矿物构成发生变化

【引伸】
ep.igenet.ic