12-Letter Words Matching ___I_____M__

There are 12 12-letter words that match ___I_____M__. 3 are common words, such as ARTILLERYMAN and ARTILLERYMEN. A rarer one is SCHISTOSOMAL. In this set, T is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

artillerymanartillerymenbrainstormedschistosomesschizothymiaantiacademicanticonsumerantieconomicantileukemicbrainstormercleistogamicschistosomal

About this list

Words
12 (3 common words)
Common example
artilleryman
Rare example
schistosomal
Doubled letters
2
Ending in S
1
Most frequent letter
T (12)

Questions

How many 12-letter words matching ___i_____m__ are there?

12. 3 of them are common words.

What is a common example?

ARTILLERYMAN is among the common words in this set.