Simple Definition of measles

from our Learner's Dictionary

measles

noun

: a disease that causes a fever and red spots on the skin
He has (the) measles.
get/catch the measles

Cite this Entry

“Measles.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/measles. Accessed 17 Jun. 2026.

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