Arabic numeral Syllabification: (Ar·a·bic nu·mer·al)Definition of Arabic numeral noun any of the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Arabic numerals reached western Europe through Arabia, replacing Roman numerals, by about ad 1200, but probably originated in India. Arabic numeral in other Oxford dictionaries Definition of Arabic numeral in the British & World English dictionary