1. (

• regeneration

) (biology) growth anew of lost tissue or destroyed parts or organs ;

2. (

• positive_feedback ,
• regeneration ,

) feedback in phase with (augmenting) the input ;

3. (

• regeneration

) the activity of spiritual or physical renewal ;

4. (

• re-formation ,
• regeneration ,

) forming again (especially with improvements or removal of defects); renewing and reconstituting ;