13-Letter Words Matching _C_T_________

There are 14 13-letter words that match _C_T_________. 4 are common words, such as ACETAMINOPHEN and ICHTHYOLOGIES. A rarer one is SCATTERATIONS. In this set, I is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 14

acetaminophenichthyologiesichthyologistscatterbrainsacetaldehydesacetylcholineichthyosaurusacetazolamideacetificationacetonitrilesichthyofaunaeichthyofaunalichthyofaunasscatterations

About this list

Words
14 (4 common words)
Common example
acetaminophen
Rare example
scatterations
Doubled letters
2
Ending in S
7
Most frequent letter
I (13)

Questions

How many 13-letter words matching _c_t_________ are there?

14. 4 of them are common words.

What is a common example?

ACETAMINOPHEN is among the common words in this set.