Disability
The strict meaning of disability is the condition of a person who does not have the typical abilities of a healthy person.
Disability is a noun. Its root is ability. The dis prefix means lack of. Disabled is an adjective that means impaired or damaged.
There are many types of disability both physical, mental or developmental, and a wide range of the amount of the disability. Some loss of ability is expected with age and is considered normal. A disability may occur due to illness or injury. Some may be temporary, while some may lead to a permanent condition.
The term disabled sometimes is used in a pjorative sense , and terms like otherly-abled have come into existance. Some groups of disabled, such as the deaf, do not regard themselves as disabled and have developed a culture where hearing is considered unwanted.