13-Letter Words Matching __I________A_

There are 17 13-letter words that match __I________A_. 6 are common words, such as ARITHMETICIAN and CLIOMETRICIAN. A rarer one is UNIDEOLOGICAL. 3 words contain a doubled letter.

Full list 17

arithmeticiancliometricianphilosophicalseismologicaltricentennialunintentionalorientationalprivateersmanquindecennialuninfluentialepiphenomenalglioblastomasorismologicalovipositionalstichomythiastritheisticalunideological

About this list

Words
17 (6 common words)
Common example
arithmetician
Rare example
unideological
Doubled letters
3
Ending in S
2

Questions

How many 13-letter words matching __i________a_ are there?

17. 6 of them are common words.

What is a common example?

ARITHMETICIAN is among the common words in this set.