Aug. 23, 2004 -- Three cigarettes can cause more air pollution than a diesel car's exhaust, according to an Italian study. The study compared levels of air pollution particles produced by cigarettes with those coming from a late-model eco-diesel engine.
: a growth or increase that occurs after a period without growth or increase. Thesaurus: All synonyms and antonyms for resurgence Spanish Central: Translation of resurgence Nglish: Translation of resurgence for Spanish speakers Britannica English: Translation of resurgence for Arabic speakers.
Definition of regeneration. 1  1 : an act or the process of regenerating : the state of being regenerated. 2  2 : spiritual renewal or revival. 3  3 : renewal or restoration of a body, bodily part, or biological system (such as a forest) after injury or as a normal process.