| 释义 |
pre·formation
\(|)prē+\ noun
Etymology: pre- + formation
1. : the act or an instance of forming beforehand : previous formation
2. : a now discredited theory in biology that every germ cell contains the organism of its kind fully formed and complete in all its parts and that development consists merely in increase in size from microscopic proportions to those of the adult — compare encasement 1b |