preformation

n.

预先形成；

Preformation
Cluster preformation as barrier penetrability
Organ preformation in mayapple as a mechanism for historical effects on demography.
$\alpha$ particle preformation in heavy nuclei and penetration probability
Preformation or Epigenesis?. (Book Reviews: Oogenesis. The storage of developmental information)
Extreme preformation in alpine Polygonum viviparum: an architectural and developmental analysis.
Mechanisms of metazoan germ cell specification: epigenesis and preformation
Mechanisms of germ cell specification across the metazoans: epigenesis and preformation.
Theories in early embryology: close connections between epigenesis, preformationism, and self-organization
Crown architecture of Larix laricina saplings: shoot preformation and neoformation and their relationships to shoot vigour