>Iranic
no such word exists. That's Iranian.

Turkish/Turkic makes sense, because the ethnic Turkish and the ethnic Turkic are the different stuffs.
The ethnic Iranians and the ethnic ""Iranics"" are the same thing on the other hand.
>B... but, Iranians in Islamic republic of Iran are only a part of the Iranics
They have never made up an ethnicity "Iranian" to distinguish Iranians inside and outside of historical Persia.