obesity
noun
obe·si·ty
ō-ˈbē-sə-tē 
: a condition characterized by the excessive accumulation and storage of fat in the body
Obesity affects not just appearance, but disease processes as well.—
Malorye Allison
Malorye AllisonExamples of obesity in a Sentence
obesity has been linked to a number of health risks, such as heart disease
Recent Examples on the Web
The study also relies on observational data, which can reveal associations but can't prove that obesity directly causes faster Alzheimer’s pathology, the researchers noted.
—Angelica Stabile, FOXNews.com, 5 Dec. 2025
Big picture, this work supports the idea that obesity is also a social and neurobiological condition—and that strengthening supportive relationships may be a legitimate target for interventions, alongside diet, exercise, and medications.
—Rachael O'Connor, MSNBC Newsweek, 4 Dec. 2025
Help fight growing issues in cats such as diabetes, kidney disease and obesity.
—Saleen Martin, USA Today, 4 Dec. 2025
Supports Healthy Digestion The fiber in oatmeal helps keep your bowel movements regular and supports the growth of beneficial gut bacteria that may help protect against obesity.
—Lindsey Desoto, Health, 4 Dec. 2025
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Angelica Stabile, FOXNews.com, 5 Dec. 2025
Big picture, this work supports the idea that obesity is also a social and neurobiological condition—and that strengthening supportive relationships may be a legitimate target for interventions, alongside diet, exercise, and medications.
—Rachael O'Connor, MSNBC Newsweek, 4 Dec. 2025
Help fight growing issues in cats such as diabetes, kidney disease and obesity.
—Saleen Martin, USA Today, 4 Dec. 2025
Supports Healthy Digestion The fiber in oatmeal helps keep your bowel movements regular and supports the growth of beneficial gut bacteria that may help protect against obesity.
—Lindsey Desoto, Health, 4 Dec. 2025
See All Example Sentences for obesity
Cite this Entry
“Obesity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/obesity. Accessed 8 Dec. 2025.
Copy CitationMedical Definition
obesity
noun
obe·si·ty
ō-ˈbē-sət-ē
plural obesities
: a condition that is characterized by excessive accumulation and storage of fat in the body and that in an adult is typically indicated by a body mass index of 30 or greater
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