Glossary
Searchable terminology from accessibility, web standards, and related fields.
101 results found in conditions.
- Muscular Dystrophy (MD)
- A group of inherited genetic conditions that cause progressive weakness and degeneration of skeletal muscles, the muscles that control movement. There are many types of muscular dystrophy varying in s…
- Muscular Dystrophy (MD)
- A group of inherited genetic conditions that cause progressive weakness and loss of muscle mass, affecting mobility, upper limb function, and in some forms, respiratory and cardiac function. People wi…
- Neurodiversity (Neurological diversity)
- A concept that regards differences in brain function and behavioural traits — including autism, ADHD, dyslexia, dyspraxia, and intellectual disability — as natural variation within the human populatio…
- Nonverbal Learning Disorder (NVLD, Nonverbal Learning Disability, NLD)
- A neurodevelopmental condition characterized by difficulties with visual-spatial processing, motor coordination, and social skills, while verbal abilities are typically a relative strength. People wit…
- Nystagmus (Involuntary eye movement, Dancing eyes)
- A condition characterized by involuntary, repetitive, rhythmic movements of the eyes, which may move side to side (horizontal), up and down (vertical), or in a circular pattern (rotary). Nystagmus can…
- Nystagmus (Involuntary Eye Movement, Dancing Eyes)
- A condition involving involuntary, repetitive, and rhythmic movements of the eyes, which can be horizontal, vertical, or rotary. Nystagmus can be congenital (present from birth) or acquired later in l…
- Oligodactyly
- A congenital condition in which a person is born with fewer than the typical number of fingers or toes. The condition varies widely in presentation — some individuals may have fewer digits on one hand…
- PTSD (Post-traumatic stress disorder, Post-traumatic stress)
- A psychiatric condition that can develop after exposure to traumatic events, characterized by intrusive memories, avoidance of trauma-related stimuli, negative changes in mood and cognition, and heigh…
- Peripheral Neuropathy (Neuropathy)
- Peripheral neuropathy is a condition resulting from damage to the peripheral nerves, which carry signals between the brain, spinal cord, and the rest of the body. Symptoms typically include numbness, …
- Phonophobia (Sound Phobia, Ligyrophobia)
- Phonophobia is an intense fear or aversion to specific sounds or loud noises that goes beyond simple discomfort, often leading to avoidance behaviors such as fleeing from environments where triggering…
- Photosensitive epilepsy (PSE, Photosensitivity, Visually-provoked epilepsy)
- A form of epilepsy in which seizures are triggered by visual stimuli such as flashing lights, strobing effects, rapid colour transitions, or high-contrast repeating patterns. It affects approximately …
- Photosensitivity (Light Sensitivity, Photophobia)
- An abnormal sensitivity to light that can cause discomfort, pain, or visual disturbance. Photosensitivity affects many people with visual impairments and certain neurological conditions including migr…
- Post-Exertion Malaise (PEM, Post-Exertional Malaise, Crash)
- A disproportionate worsening of symptoms following physical, cognitive, or emotional exertion that would not cause comparable effects in a healthy person. Post-exertion malaise is a hallmark symptom o…
- Post-Traumatic Stress Disorder (PTSD)
- A mental health condition that can develop after experiencing or witnessing a traumatic event such as violence, natural disaster, serious accident, or combat. Symptoms include intrusive memories or fl…
- Post-lingual Deafness (Post-linguistic Deafness, Acquired Deafness, Late-Onset Deafness)
- Deafness that occurs after a person has acquired spoken language, meaning they have existing literacy in written and spoken language. Post-lingual deaf users can typically read and write fluently, mak…
- Pre-lingual Deafness (Pre-linguistic Deafness, Congenital Deafness)
- Deafness that occurs before a person acquires spoken language, either present from birth or developing in early childhood. People with pre-lingual deafness typically use sign language as their primary…
- 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…
- Progressive Disability (Degenerative Condition, Progressive Condition)
- A disability or condition that worsens over time, requiring adaptive strategies and technologies that can evolve with changing abilities. Progressive disabilities such as dementia, multiple sclerosis,…
- Pseudobulbar Affect (PBA, Emotional Incontinence, Involuntary Emotional Expression Disorder)
- A neurological condition characterized by episodes of involuntary, exaggerated, or inappropriate emotional expression — such as uncontrollable laughing or crying — that may not match the person's actu…
- Reminiscence therapy (Reminiscence, Life review therapy, Memory sharing)
- A therapeutic intervention widely used with older adults and people with dementia that involves the structured recall and sharing of personal memories and life experiences, often supported by prompts …