lifespan
noun
life·span
ˈlīf-ˌspan 
variants
or less commonly life span
plural lifespans also life-spans
1
: the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances
2
: the duration of existence of an individual
Examples of lifespan in a Sentence
the average lifespan of house cats
increase the human lifespan
Recent Examples on the Web
Frequent bouts of rheumatic fever left the kid’s heart so weakened that one childhood doctor predicted a lifespan of 16 years.
—
Greg Evans, Deadline, 26 Apr. 2025
Vegan leather made from plastic often have the a shorter lifespan, ending up in landfill or in donation centers faster than their real animal sibling.
—Gia Yetikyel, Vogue, 26 Apr. 2025
According to Grand View Research, the industry was valued at over $50 billion in 2024 and is projected to continue growing as aging populations seek to extend both lifespan and healthspan.
—Abdo Riani, Forbes.com, 23 Apr. 2025
Key Takeaways Regularly cleaning your garden gloves based on their material type helps extend their lifespan and keeps them protective.
—Brandee Gruener, Southern Living, 22 Apr. 2025
The concept of longevity—extending both lifespan and quality of life through lifestyle practices—has never been more prevalent.
—Nicole Hoey, Robb Report, 18 Apr. 2025
De-duplication, lifespan analysis, and automatic HDD firmware updates could also disappear on non-approved drives, Synology's press release suggests.
—Kevin Purdy, ArsTechnica, 17 Apr. 2025
Fueled by a lifetime love of horror, the filmmaker developed a plot that resurrected the life force of the early blues scene and merged it with the intriguing possibilities inherent in a vampire’s eternal lifespan.
—Tim Greiving, Los Angeles Times, 16 Apr. 2025
Experts note that the general lifespan of landscape turf ranges from 15 to 25 years, depending on the materials used, installation practices, and follow-up care.
—Colleen Sullivan, Better Homes & Gardens, 14 Apr. 2025
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Greg Evans, Deadline, 26 Apr. 2025
Vegan leather made from plastic often have the a shorter lifespan, ending up in landfill or in donation centers faster than their real animal sibling.
—Gia Yetikyel, Vogue, 26 Apr. 2025
According to Grand View Research, the industry was valued at over $50 billion in 2024 and is projected to continue growing as aging populations seek to extend both lifespan and healthspan.
—Abdo Riani, Forbes.com, 23 Apr. 2025
Key Takeaways Regularly cleaning your garden gloves based on their material type helps extend their lifespan and keeps them protective.
—Brandee Gruener, Southern Living, 22 Apr. 2025
The concept of longevity—extending both lifespan and quality of life through lifestyle practices—has never been more prevalent.
—Nicole Hoey, Robb Report, 18 Apr. 2025
De-duplication, lifespan analysis, and automatic HDD firmware updates could also disappear on non-approved drives, Synology's press release suggests.
—Kevin Purdy, ArsTechnica, 17 Apr. 2025
Fueled by a lifetime love of horror, the filmmaker developed a plot that resurrected the life force of the early blues scene and merged it with the intriguing possibilities inherent in a vampire’s eternal lifespan.
—Tim Greiving, Los Angeles Times, 16 Apr. 2025
Experts note that the general lifespan of landscape turf ranges from 15 to 25 years, depending on the materials used, installation practices, and follow-up care.
—Colleen Sullivan, Better Homes & Gardens, 14 Apr. 2025
Cite this Entry
“Lifespan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifespan. Accessed 4 May. 2025.
Copy CitationMedical Definition
life span
noun1
: the duration of existence of an individual
2
: the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances
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