Roman numeral
Definition of Roman numeral
: a numeral in a system of notation that is based on the ancient Roman system — see number table
Explore Merriam-Webster
Examples of roman numeral in a Sentence
In Roman numerals “X” is equal to the number 10.
First Known Use of roman numeral
circa 1638
ROMAN NUMERAL Defined for English Language Learners
Roman numeral
Definition of Roman numeral for English Language Learners
-
: one of the letters that were used by the ancient Romans to represent numbers and that are still used today
Learn More about roman numeral
-
Spanish Central: Translation of Roman numeral Nglish: Translation of Roman numeral for Spanish speakers Britannica.com: Encyclopedia article about Roman numeral
Seen and Heard
What made you want to look up Roman numeral? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!