Glossary

Searchable terminology from accessibility, web standards, and related fields.

8 results found in developmental disability.

Childhood apraxia of speech (CAS, Developmental verbal dyspraxia, DVD)
A motor speech disorder in which the brain has difficulty planning and coordinating the precise movements of the tongue, lips, jaw, and palate needed for intelligible speech. Unlike other speech disor…
Developmental Disability (DD, Developmental Disabilities)
A group of conditions arising from impairments in physical, learning, language, or behavioral areas that begin during the developmental period, typically before age 22, and are expected to be lifelong…
Developmental disability (Developmental disorder)
A group of conditions resulting from impairments in physical, learning, language, or behavioural areas that begin during the developmental period, are usually lifelong, and affect day-to-day functioni…
Early intervention (Early childhood intervention, EI)
A system of services and supports provided to infants and young children with developmental delays or disabilities, typically from birth to age three, and their families. Early intervention can includ…
Intellectual and Developmental Disability (IDD, Intellectual Disability, Developmental Disability)
A group of conditions characterised by significant limitations in both intellectual functioning (reasoning, learning, problem-solving) and adaptive behaviour (everyday social and practical skills), wi…
Joint attention (Shared attention)
The shared focus of two or more individuals on the same object or event, typically established through gaze, pointing, or other communicative cues. Joint attention is a foundational social-cognitive s…
Leukodystrophy (Leukodystrophies)
Leukodystrophy is a group of rare, progressive, metabolic, genetic diseases that affect the brain, spinal cord, and peripheral nerves by damaging the white matter (myelin sheath) that insulates nerve …
Profound and Multiple Learning Disabilities (PMLD, Profound Intellectual and Multiple Disabilities, PIMD)
Profound and multiple learning disabilities (PMLD) refers to a combination of profound intellectual disability with additional physical, sensory, or health impairments that together create extremely c…