Simple Definition of polio

from our Learner's Dictionary

polio

noun

ˈpoʊlijoʊ How to pronounce polio (audio)
medical : a serious disease that affects the nerves of the spine and often makes a person permanently unable to move particular muscles

called also poliomyelitis

Cite this Entry

“Polio.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/polio. Accessed 15 Apr. 2026.

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Nglish: Translation of polio for Spanish Speakers

Britannica.com: Encyclopedia article about polio

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