very overweight, esp unhealthily so overweight according to medical criteria concerning the risk to health of excessive weight
A person can become obese when energy intake exceeds energy expenditure, usually by a small amount over many years. The quantity and quality of food available, and sedentary lifestyles, have resulted in an epidemic of obesity in consumer societies. Central or visceral obesity, an expression of the ‘metabolic syndrome’, is a risk factor for diabetes, cardiovascular disease, osteoarthritis and sleep apnoea – Professor Leonard C Harrison
obesity noun
[Latin obesus, past part. of obedere to eat up, from ob- + edere to eat]