13-Letter Words Matching _____O_____M_

There are 21 13-letter words that match _____O_____M_. 5 are common words, such as EMOTIONALISMS and FACTIONALISMS. A rarer one is PSYCHOLOGISMS. In this set, S is the most frequent open letter (19 words). 1 words contain a doubled letter.

Full list 21

emotionalismsfactionalismsmetamorphismspraseodymiumssectionalismsautomorphismsendomorphismshomomorphismslymphosarcomamorphophonemepleomorphismspneumonectomypolymorphismsallomorphismsanecdotalismscryptorchismsdichromatismshemimorphismsmetasomatismsmonomorphismspsychologisms

About this list

Words
21 (5 common words)
Common example
emotionalisms
Rare example
psychologisms
Doubled letters
1
Ending in S
18
Most frequent letter
S (19)

Questions

How many 13-letter words matching _____o_____m_ are there?

21. 5 of them are common words.

What is a common example?

EMOTIONALISMS is among the common words in this set.