The theory, now generally held, that an embryo develops progressively from an undifferentiated egg cell. Often contrasted with preformation.
More example sentences
- In epigenesis, the developing organism begins in an undifferentiated state and gradually changes to a more complex state through multiple interactions.
- He did not assume that an inert and common matter was sufficient for a plausible formulation of a theory of mechanical epigenesis.
- Chapter 5 introduces their role in development, concluding that epigenesis is really, really complicated.
Definition of epigenesis in:
- The British & World English dictionary