The definition of intellectual disability has undergone modifications over time, such as, for example, changing the term. In 2010, the 11th edition of the manual ’Intellectual Disability: Definition, Classification and Levels of Support’ was published by AAIDD (American Association on Intellectual and Developmental Disabilities), which maintained the 2002 definition, but incorporated the change in the term ’ mental retardation/disability’ for intellectual disability with the following wording: Intellectual disability is a disability characterized by significant limitations in intellectual functioning (reasoning, learning and problem solving) and in adaptive behavior that covers a range of social and practical skills of everyday life. day. This disability originates before the age of 18. (SCHALOCK et al. 2010, p.6).