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

In Roman numerals “X” is equal to the number 10.

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More Definitions for Roman numeral

Roman numeral

noun

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

Roman numeral

noun

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