Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Hearing Loss(also: Hearing Impairment, Hard of Hearing, Deafness)
- A partial or total inability to hear sounds, ranging from mild hearing loss to profound deafness. Hearing loss can be congenital or acquired, and becomes increasingly common with age, affecting approximately one-third of people over 65. Digital accessibility for people with…
- Hearing loss(also: Hearing impairment, Hard of hearing, Deafness spectrum)
- A reduction in the ability to perceive sounds, occurring on a spectrum from mild (difficulty hearing soft sounds or speech in noisy environments) through moderate and severe to profound (inability to hear most sounds without amplification). Hearing loss may be unilateral (one…
- Hemiplegia(also: Hemiparesis)
- A condition involving paralysis or severe weakness on one side of the body, most commonly resulting from stroke but also caused by traumatic brain injury, cerebral palsy, or other neurological conditions. Hemiplegia affects the arm, leg, and sometimes facial muscles on the…
- Homebound(also: Housebound)
- A status in which an individual has difficulty leaving their home without assistive devices or help from others, typically due to illness, injury, or environmental factors such as lack of transportation. As defined by the U.S. Centers for Medicare & Medicaid Services, homebound…
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