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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.

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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:

"As you look at polio, we need to not be afraid to consider that we are in a different time now than we were then," Milhoan said.

From BBC Jul. 14, 2026

Martha Lillard was the last polio patient in the US who used an iron lung but her family told the BBC she never let it slow her down.

From BBC Jul. 14, 2026

In the 1930s and ’40s, Eleanor Roosevelt famously became Franklin D. Roosevelt’s “eyes, ears and legs” because he was limited by polio, said Barbara A. Perry, a professor of governance at the University of Virginia.

From Los Angeles Times Jul. 7, 2026

The affected data include childhood immunization rates against diphtheria, tetanus, pertussis, polio, measles, mumps and rubella, hepatitis, chicken pox and flu; and rates for 13 year olds and expectant mothers.

From Los Angeles Times Jul. 3, 2026

Sherman’s left leg was shriveled and weak, the result of polio.

From "October Sky" by Homer Hickam

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