13-Letter Words Matching _____T______C

There are 23 13-letter words that match _____T______C. 3 are common words, such as ARCHITECTONIC and ONOMATOPOETIC. A rarer one is TRANSTHORACIC. In this set, I is the most frequent open letter (23 words). 4 words contain a doubled letter.

Full list 23

architectoniconomatopoeticopportunisticgerontocraticintratelluricnonpathogenicobjectivisticvoluntaristicadventuristicamphitheatricdensitometricintrathoracicmagnetometricmagnetostaticminiaturisticnonantibioticphreatophyticprimitivisticsensitometricstreptococcicsuperterrificsympatholytictransthoracic

About this list

Words
23 (3 common words)
Common example
architectonic
Rare example
transthoracic
Doubled letters
4
Ending in S
0
Most frequent letter
I (23)

Questions

How many 13-letter words matching _____t______c are there?

23. 3 of them are common words.

What is a common example?

ARCHITECTONIC is among the common words in this set.