Sas·sa·ni·an or Sa·sa·ni·an  (sə-sā'nē-ən, sā-)  adj. Of or relating to a Persian dynasty (A.D. 224-651) and the last line of Persian kings before the Arab conquest. The Sassanian era was marked by wars against Romans, Armenians, and Huns and by the revival of Zoroastrianism and Achaemenid custom. n. A member or subject of this dynasty. [After Sassan, ancestor of Ardashir I, founder of the dynasty.] |