obesity: Body Mass Index for adultsEncyclopÃ¦dia Britannica, Inc.Obesity was traditionally defined as an increase in body weight that was greater than 20 percent of an individualâs ideal body weightâthe weight associated with the lowest risk of death, as determined by certain factors, such as age, height, and gender.
Define infancy: early childhood; a beginning or early period of existence; the legal status of an infant â infancy in a sentence early childhood; a beginning or early period of existence; the legal status of an infantâ¦ See the full definition
Definition of advance. 1  1 : a moving forward halted the enemy's advances. 2  2a : progress in development â¦ mistaking material advance for spiritual enrichment. 3  3 : a rise in price, value, or amount The workers won wage advances.  4 : a first step or approach made Her attitude discouraged all advances.