13-Letter Words Matching ____E______M_

There are 12 13-letter words that match ____E______M_. 3 are common words, such as COLLECTIVISMS and CONSERVATISMS. A rarer one is TRIMETHOPRIMS. In this set, S is the most frequent open letter (12 words). 3 words contain a doubled letter.

Full list 12

collectivismsconservatismspraseodymiumsaeroembolismscommensalismssubjectivismsuniversalismsfraternalismsnonpetroleumsscapegoatismssymmetallismstrimethoprims

About this list

Words
12 (3 common words)
Common example
collectivisms
Rare example
trimethoprims
Doubled letters
3
Ending in S
12
Most frequent letter
S (12)

Questions

How many 13-letter words matching ____e______m_ are there?

12. 3 of them are common words.

What is a common example?

COLLECTIVISMS is among the common words in this set.