14-Letter Words Matching ____T________C

There are 12 14-letter words that match ____T________C. 1 are common words, such as UNENTHUSIASTIC and ELECTRODYNAMIC. A rarer one is SEROTONINERGIC. In this set, I is the most frequent open letter (12 words). 1 words contain a doubled letter.

Full list 12

unenthusiasticelectrodynamicelectrokineticphantasmagoricspectrographicsubatmosphericdiastereomericelectroosmoticenantiomorphickeratinophilicroentgenologicserotoninergic

About this list

Words
12 (1 common words)
Common example
unenthusiastic
Rare example
serotoninergic
Doubled letters
1
Ending in S
0
Most frequent letter
I (12)

Questions

How many 14-letter words matching ____t________c are there?

12. 1 of them are common words.

What is a common example?

UNENTHUSIASTIC is among the common words in this set.