12-Letter Words Matching __A________M

There are 16 12-letter words that match __A________M. 3 are common words, such as CHARLATANISM and PRASEODYMIUM. A rarer one is STANDPATTISM. In this set, I is the most frequent open letter (15 words). 5 words contain a doubled letter.

Full list 16

charlatanismpraseodymiumtransvestismclassicalismdialecticismdiamagnetismdiastrophismflagelliformfraternalismpragmaticismscapegoatismtransformismtransuraniumcladophyllumflabelliformstandpattism

About this list

Words
16 (3 common words)
Common example
charlatanism
Rare example
standpattism
Doubled letters
5
Ending in S
0
Most frequent letter
I (15)

Questions

How many 12-letter words matching __a________m are there?

16. 3 of them are common words.

What is a common example?

CHARLATANISM is among the common words in this set.