/is'may il"ee euhn/ , n. Islam.
a member of the Isma'iliya sect.
Also, Isma'ili /is'may il"ee/ . Also called Sevener .
[ 1830-40; isma'ili (equiv. to Isma'il (died A.D. 760), elder son of the imam Ja'far, but disinherited by his father + -i suffix of appurtenance) + -AN ]