| Roman numeral n. Any of the numerical symbols formed with the Roman letters I, V, X, L, C, D, and M, representing respectively the numbers 1, 5, 10, 50, 100, 500, and 1000, used by the ancient Romans and still used today in certain formal contexts. |
| roman numeral | |
noun | |
| a symbol in the old Roman notation; I,V,X,L,C,D,M represent 1,5,10,50,100,500,1000 respectively in Arabic notation [ant: arabic numeral] |