Definitions

1. noun

A mass of undifferentiated cells from which new tissue can form during the process of regeneration, especially in amphibians.

“During the regeneration process, the wound forms a blastema, which eventually develops into new tissue.”

2. noun

A mass of undifferentiated cells that serves as a source of new tissue during growth, repair, or regeneration.

“The blastema is responsible for the development of new limbs in salamanders after amputation.”