Heian: Meaning and Definition of

Hei•an

Pronunciation: (hā'än'), [key]
— adj.
  1. of or pertaining to the period in Japan, a.d. 794–1185, characterized by the modification and naturalization of ideas and institutions that were earlier introduced from China.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.