Roman numeral

noun

Definition of Roman numeral

: 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.

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Cite this Entry

“Roman numeral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Roman%20numeral. Accessed 8 Mar. 2021.

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More Definitions for Roman numeral

Roman numeral

noun

English Language Learners Definition of Roman numeral

: one of the letters that were used by the ancient Romans to represent numbers and that are still used today

See the full definition for Roman numeral in the English Language Learners Dictionary

Roman numeral

noun

Kids Definition of Roman numeral

: a numeral in a system of figures based on the ancient Roman system In Roman numerals X equals 10.

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