Plain English Meaning
Loss of movement or feeling in the legs and lower body, usually because of damage to the spine.
Full Definition
A medical condition involving partial or complete loss of motor function, sensation, or both in the lower body and legs, typically caused by injury or disease of the spinal cord below the neck.
Context Anchor
Seen in medical certification discussions, especially when the FAA is considering whether a physical condition affects safe aircraft operation.
Derivation
From the Greek 'para' meaning 'beside' or 'alongside' and 'plegia' meaning 'stroke' or 'paralysis.' Originally used to describe paralysis affecting one side of the body, it now refers specifically to paralysis of the lower body.
Why Pilots Care
This condition generally requires a special issuance medical certificate and may limit or prevent flying unless can demonstrate full of the aircraft.