From Longman Dictionary of Contemporary Englishlongevitylon‧gev‧i‧ty /lɒnˈdʒevəti $ lɑːn-, lɒːn-/ noun [uncountable]1LONG TIMEthe amount of time that someone or something liveslongevity ofthe greater longevity of women compared with menThe worms have a longevity of about two years.2long life or the long time that something lastsThe ancient Chinese claimed that garlic promoted longevity.3the amount of time that something lastslongevity ofthe longevity of an athlete’s careerExamples from the Corpuslongevity• The inhabitantsenjoy good health and longevity.• The people of this village enjoy good health and longevity.• Very few people have a career of great longevity, constancy and consistency in films.• He attributes his longevity to 'a simplediet and a glass of wine every day'.• It was operated with care, oiled, greased and allowed to rest; its longevity was protected.• But for the first time it seemed possible to measure the body like a machine to test its longevity.• The more successful we are at prolonging longevity, the more it will cost us in elderly care costs.• The die was cast for great specieslongevity.• But they also came to representadmiredqualities: strength, longevity and triumph over adversity.• As in the case of genes, fecundity is much more important than longevity of particular copies.• the disparity in the longevity of the sexesOriginlongevity(1600-1700)Late Latinlongaevitas, from Latinlongaevus"long-lived", from longus"long" + aevum"age"