Roman numeral
noun
: a numeral in a system of notation that is based on the ancient Roman system see Table of Numbers
Examples of Roman numeral in a Sentence
In Roman numerals “X” is equal to the number 10.
Word History
First Known Use
circa 1638, in the meaning defined above
Dictionary Entries Near Roman numeral
Cite this Entry
“Roman numeral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Roman%20numeral. Accessed 30 Nov. 2023.
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Kids Definition
Roman numeral
noun
: a numeral in a system of numbers based on the ancient Roman system see number
More from Merriam-Webster on Roman numeral
Britannica.com: Encyclopedia article about Roman numeral
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