1. an infectious viral disease that affects the nervous system and can cause paralysis
Usage: medical

Examples

• The polio vaccine was developed in the 1950s.
• Many children were affected by polio before vaccination became widespread.
• She contracted polio as a child and used a wheelchair.
• The polio epidemic caused widespread fear among parents.
• Thanks to vaccines, polio has been nearly eliminated worldwide.
• He survived polio but had weakness in one leg.
• The March of Dimes raised funds for polio research.