紮馬剌丁 [ㄗㄚ ㄇㄚˇ ㄌㄚˊ ㄉㄧㄥ; za1 ma3 la2 ding1] Jamal al-Din ibn Muhammad al-Najjari (13th century), famous Persian astronomer and scholar who served Khubilai Khan 忽必烈 from c. 1260 ◄ ►