1the basic monetary unit of Iran and Oman, equal to 100 dinars in Iran and 1,000 baiza in Oman.
2 (usually riyal) the basic monetary unit of Saudi Arabia, Qatar, and Yemen, equal to 100 halala in Saudi Arabia, 100 dirhams in Qatar, and 100 fils in Yemen.
Origin:
via Persian from Arabic riyāl, from Spanish real 'royal'