___________ is/are a severe, chronic disability of a person five years of age or older.

Developmental disabilities refer to a group of chronic conditions that emerge during the developmental period of a person, generally before the age of 22, and can have lifelong effects. These disabilities can affect various aspects of an individual's functioning, including physical, learning, language, and behavior. The definition explicitly states that the person is five years of age or older, which aligns with the context of developmental disabilities becoming more apparent in early childhood and continuing through adulthood.

This category encompasses various types of disabilities, including but not limited to intellectual disabilities, which is a subset but does not cover the full range of difficulties associated with developmental disabilities. For example, some individuals may have significant challenges in communication or mobility without having an intellectual disability. The broader classification of developmental disabilities thus accurately captures the comprehensive nature of the chronic disabilities experienced by individuals across their lifespan.