Seph. /dah yahn"/ ; Ashk. /dah yawn"/ , n. , pl. dayanim Seph. /dah'yah neem"/ ; Ashk. /dah yaw"nim/ . Hebrew.
1. a judge in a Jewish religious court.
2. a person knowledgeable in Talmudic law whose advice on religious questions is often sought by rabbis.
[ dayyan judge ]