Definition: Disorders in which there is a delay in development based on that expected for a given age level or stage of development. These impairments or disabilities originate before age 18, may be expected to continue indefinitely, and constitute a substantial impairment. Biological and nonbiological factors are involved in these disorders. (From American Psychiatric Glossary, 6th ed)
Other names Disabilities, Developmental; Developmental Delay Disorders; Child Development Disorders, Specific; Child Development Disorders; Child Development Deviations; Disability, Developmental; Deviation, Child Development; Developmental Disability; Developmental Delay Disorder; Development Disorder, Child; Development Deviations, Child; Development Deviation, Child; Child Development Disorder; Child Development Deviation; Development Disorders, Child