14-Letter Words Matching __T_________M_

There are 13 14-letter words that match __T_________M_. 3 are common words, such as ANTICOMMUNISMS and ANTILOGARITHMS. A rarer one is ULTRAMICROTOMY. In this set, I is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 13

anticommunismsantilogarithmsrutherfordiumsautoeroticismsretinoblastomaantinomianismsantiritualismsantiterrorismsautoradiogramscatastrophismsinterferogramsultramicrotomeultramicrotomy

About this list

Words
13 (3 common words)
Common example
anticommunisms
Rare example
ultramicrotomy
Doubled letters
2
Ending in S
10
Most frequent letter
I (13)

Questions

How many 14-letter words matching __t_________m_ are there?

13. 3 of them are common words.

What is a common example?

ANTICOMMUNISMS is among the common words in this set.