13-Letter Words Matching __E________M_

There are 12 13-letter words that match __E________M_. 1 are common words, such as OVEROPTIMISMS and ADENOIDECTOMY. A rarer one is THEOCENTRISMS. In this set, O is the most frequent open letter (11 words). 2 words contain a doubled letter.

Full list 12

overoptimismsadenoidectomycheckerbloomspleomorphismspneumonectomyanecdotalismschemotaxonomychemotropismsgreenbackismsoperationismspteridospermstheocentrisms

About this list

Words
12 (1 common words)
Common example
overoptimisms
Rare example
theocentrisms
Doubled letters
2
Ending in S
9
Most frequent letter
O (11)

Questions

How many 13-letter words matching __e________m_ are there?

12. 1 of them are common words.

What is a common example?

OVEROPTIMISMS is among the common words in this set.