What term is used to describe obesity?

The term "corpulence" is a medical and formal way to refer to obesity, which is characterized by an excessive accumulation of body fat. It encompasses not only the condition of being overweight but also the associated health risks that arise from high body fat levels. This term is often used in clinical settings and literature to describe individuals who have a Body Mass Index (BMI) that categorizes them as obese.

The other terms provided do not relate to obesity in the same context. "Condensation" refers to the physical process where gas turns into liquid, unrelated to body weight or health. "Correlation" pertains to the statistical relationship between two variables, which does not specifically describe obesity. "Constipation" is a gastrointestinal condition concerning the difficulty of bowel movements, which is also unrelated to the definition of obesity. Thus, "corpulence" stands out as the appropriate term in this context.