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polio

American  
[poh-lee-oh] / ˈpoʊ liˌoʊ /

polio British  
/ ˈpəʊlɪəʊ /

noun

  1. short for poliomyelitis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of polio

An Americanism dating back to 1930–35; shortened form

Explanation

Polio is a disease that's been eliminated in most parts of the world, thanks to the polio vaccine. This is lucky, since there's no treatment for polio. Before scientists developed a way to prevent polio (which is actually short for poliomyelitis), it was a fairly common childhood illness that spread easily. While many people infected with polio had no symptoms at all, it did cause paralysis in some, and resulted in death for others. The U.S. experienced a polio epidemic in 1952 that left over 20,000 people paralyzed. Jonas Salk is credited with the first effective vaccine against polio, in the mid-1950s.

Keep Reading on Vocabulary.com

Vocabulary lists containing polio

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Earlier, Jobe had grafted a tendon to a recovered polio patient’s ankle to provide stabilization.

From Los Angeles Times Aug. 16, 2026

There are five immunizations required as a condition of entry into kindergarten in California: polio; DTaP, which protects against diphtheria, tetanus and pertussis; hepatitis B; MMR; and varicella, or chickenpox.

From Los Angeles Times Aug. 15, 2026

The immunisations recommended for all children under the order are for measles, mumps, rubella, diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type B, pneumococcal disease, human papillomavirus, and varicella or chicken pox.

From BBC Aug. 10, 2026

Lynn Roberts, with one leg stunted by childhood polio, finds her time in the pool “life changing, because in the water I can do the things that everyone else does.”

From Los Angeles Times Aug. 1, 2026

“She used to take care of me when my polio got bad,” he told me.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

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