English Reference

Word

polio

Phoneticspo·lio

US/ˈpoʊɫiˌoʊ/

UK/pˈəʊlɪˌəʊ/

Definition

n. Stands for poliomyelitis. A serious disease caused by a virus that can lead to paralysis, especially in children.

n. Abbreviation for poliomyelitis. An acute viral infection of the motor neurons of the spinal cord, historically significant for causing widespread paralysis before the development of vaccines.

Examples

“The invention of the vaccine helped to eliminate polio in many countries.”

“Public health officials worked tirelessly throughout the mid-twentieth century to ensure every child received protection against polio.”

“While polio has been nearly eradicated globally, the history of its outbreaks remains a significant case study in the development of modern immunology and mass vaccination protocols.”

Examples

simple

“The invention of the vaccine helped to eliminate polio in many countries.”

contextual

“Public health officials worked tirelessly throughout the mid-twentieth century to ensure every child received protection against polio.”

complex

“While polio has been nearly eradicated globally, the history of its outbreaks remains a significant case study in the development of modern immunology and mass vaccination protocols.”

Usage

Usually used as an uncountable noun without an article.

Real-World Examples

“Jonas Salk developed the first polio vaccine on the campus of the University of Pittsburgh.”
The Conversation · 15 Sept 2026
“Twenty-week-old Grayson easily could have become one of the tens of thousands of British babies left unvaccinated against polio.”
BBC News · 3 Aug 2026

Etymology

First element of polio(myelitis).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Synonyms

infantile paralysis

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

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English Reference