obe·​si·​ty | \ ō-ˈbē-sə-tē How to pronounce obesity (audio) \

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

The other Breakthrough winners probed galaxies, snapped the first image of a black hole, discovered the biological basis of obesity and found the cellular reasons for neurodegenerative disorders. Peter Fimrite, SFChronicle.com, "Red hot chili peppers may be painful, but win SF scientist a $3 million prize," 5 Sep. 2019 Studies have repeatedly linked high-sugar diets high to elevated rates of obesity, type 2 diabetes, and heart disease. Time, "Is Sugar as Bad for Kids as It Is for Adults?," 1 Aug. 2019 The children of women pregnant during the food shortages died earlier than peers born just before, and had higher rates of obesity, diabetes, and schizophrenia. Andrew Curry, Science | AAAS, "Parents’ emotional trauma may change their children’s biology. Studies in mice show how," 18 July 2019 AP Photo South Africa has the highest rates of childhood obesity in the world, with an alarming figure of 13%. Karen Hofman, Quartz Africa, "Scientists are worried about the sugar levels of baby food in South Africa," 31 May 2019 Experiments show that mice born by C-section are more prone to obesity and have impaired immune systems. Sara Reardon, Scientific American, "Trials Test if C-section Babies Benefit From Mom’s Microbes," 17 Aug. 2019 Some studies have linked phthalate exposure to obesity, type 2 diabetes, reduced sperm count, breast cancers, reproductive malformation, infertility, and cardiovascular events. Olivia Fleming & Jenna Rosenstein, Harper's BAZAAR, "The Ultimate Guide to Clean Beauty," 12 Aug. 2019 While variants of nearly 100 genes have been linked to obesity in people of European descent, those risk factors might not apply to Taiwan’s Han Chinese population. Los Angeles Times, "These six things can stave off weight gain, even if your genes boost your risk of obesity," 1 Aug. 2019 In Korea, live streamers who eat large quantities of food in front of the camera—known as Mukbang—are prone to obesity. Jerome Gence, National Geographic, "Asia’s live-streaming industry promises intimacy. So why are users so lonely?," 31 July 2019

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

History and Etymology for obesity

borrowed from Middle French & Latin; Middle French obesité, borrowed from Latin obēsitāt-, obēsitās, from obēsus "fat, stout" + -itāt-, -itās -ity — more at obese

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Statistics for obesity

Last Updated

9 Sep 2019

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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 How to pronounce obesity (audio) \
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

What made you want to look up obesity? Please tell us where you read or heard it (including the quote, if possible).


one from the Upper Peninsula of Michigan

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