What is the term for the process of regrowing lost or damaged tissues, limbs, or organs?

The process of regrowing lost or damaged tissues, limbs, or organs is known as regeneration. This term specifically refers to the natural ability of certain organisms and cells to reproduce lost parts, whether it be in plants, animals, or humans. For example, some species of lizards can regrow their tails, and certain types of starfish can regenerate lost arms.

Regeneration involves complex biological processes, including cell division, differentiation, and the formation of new tissues. It is a remarkable phenomenon that highlights the capabilities of living organisms to heal and adapt, making it distinct from the concepts of rejuvenation, repairation, or restoration, which may involve other forms of renewal or fixing without the complete regrowth of lost structures.