obe·​si·​ty | \ō-ˈbē-sə-tē \

Definition of obesity 

: 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

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Examples of obesity in a Sentence

obesity has been linked to a number of health risks, such as heart disease

Recent Examples on the Web

Advertisement Hawaii is America's healthiest state, Californians keep their smoking to a minimum and Kansas saw the largest increase in obesity in the 2016 America's Health Rankings Report from The United Health Foundation. Scott Berson, miamiherald, "D.C. is full of psychopaths, new study says. See where your state falls on the list," 19 June 2018 The federal government has been fighting obesity since at least 1956 when President Dwight Eisenhower created the President’s Council on Youth Fitness. Marlon Graf, STAT, "Chronic diseases are taxing our health care system and our economy," 31 May 2018 The debate about junk food taxes — and soda taxes for that matter — is really a debate about what role the government should play in fighting obesity and improving the American diet. Julia Belluz, Vox, "Mexico and Hungary tried junk food taxes — and they seem to be working," 6 Apr. 2018 The addition aims to educate visitors about physical activity to fight obesity. Domenica Bongiovanni, Indianapolis Star, "See drone footage of Children's Museum's new $38.5 million Sports Legends Experience," 23 Feb. 2018 The most common approaches to fighting obesity include bariatric surgery and pills (or devices) which suppress appetite. Sy Mukherjee, Fortune, "This Obesity Fighting Drug Could Melt Fat and Lower Cholesterol—Without Suppressing Your Appetite," 5 Jan. 2018 Parents’ genetic contributions to their offspring do influence a child’s propensity to obesity. Melissa Healy, latimes.com, "To reduce your risk of obesity, it helps to have a mom who follows five healthy habits," 5 July 2018 News of Diet Coke's resurgence comes after a new study by the Medical College of Wisconsin and Marquette University showed that artificial sweeteners are linked to obesity and diabetes. Zlati Meyer, USA TODAY, "Diet Coke sales bubble up again, thanks to 4 new Millennial-centric flavors," 24 Apr. 2018 Next, scientists examined a genetic predisposition to obesity and a specific gene was identified. Bryant Stamford, The Courier-Journal, "Americans are eager to hear obesity is not our fault. New research adds to the debate," 22 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'obesity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of obesity

circa 1611, in the meaning defined above

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Statistics for obesity

Last Updated

4 Nov 2018

Look-up Popularity

Time Traveler for obesity

The first known use of obesity was circa 1611

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More Definitions for obesity


obe·​si·​ty | \ō-ˈbē-sət-ē \
plural obesities

Medical Definition of obesity 

: 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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Comments on obesity

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playful or foolish behavior

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