Definition of superregeneration in US English:

superregeneration

noun

  • 1Biology. The regeneration of more tissue than has been removed or damaged, as in the production of supernumerary digits on an amputated limb in urodele amphibians.

  • 2Electronics. Regenerative amplification in which self-oscillation is prevented by repeated quenching of the signal at an ultrasonic frequency.

Origin

Late 19th century; earliest use found in Natural Science: a monthly review of scientific progress. From super- + regeneration.