12-Letter Words Matching __I_______A_

There are 22 12-letter words that match __I_______A_. 4 are common words, such as ARITHMETICAL and COINCIDENTAL. A rarer one is URINOGENITAL. In this set, I is the most frequent open letter (19 words). 2 words contain a doubled letter.

Full list 22

arithmeticalcoincidentaloligarchicalphilologicalaniseikoniasepigraphicalepiscopalianepitheliomasprimogenitalquinquennialtrimolecularubiquitarianchimichangasepicuticularepicycloidalfritillariasrhizoctoniastribologicaltrichopterantriglyphicaltriphthongalurinogenital

About this list

Words
22 (4 common words)
Common example
arithmetical
Rare example
urinogenital
Doubled letters
2
Ending in S
5
Most frequent letter
I (19)

Questions

How many 12-letter words matching __i_______a_ are there?

22. 4 of them are common words.

What is a common example?

ARITHMETICAL is among the common words in this set.