Simple Definition of longevity
: long life : the fact of living for many years
: length of life
: the length of time that something or someone lasts or continues
Examples of longevity in a sentence
His longevity was remarkable considering he had been so sick when he was a child.
Better medical treatment has led to greater longevity.
a study of human longevity
The longevity of a car's tires depends on how the car is driven.
They're trying to increase the product's longevity.
Did You Know?
As living conditions improve and the science of medicine advances, the longevity of the average American has increased greatly, from about 45 years in 1900 to over 75 years today. But the most impressive human longevity is nothing compared to the 400-year lifespan of an ocean clam found near Iceland, or the 5,000-year lifespan of the bristlecone pine, a tree found in the western U.S. We may use longevity to talk not only about actual lives but also of the useful "life" of things: the life of your car's tires or the shingles on your roof, for example.
Origin and Etymology of longevity
Late Latin longaevitas, from Latin longaevus long-lived, from longus long + aevum age — more at aye
First Known Use: 1615
Medical Definition of longevity
1: a long duration of individual life <attributed his longevity to daily exercise and a healthy diet>
2: length of life <studies in longevity>
Seen and Heard
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