13-Letter Words Matching A_____C______

There are 20 13-letter words that match A_____C______. 9 are common words, such as ACUPUNCTURIST and ADJUDICATIONS. A rarer one is ANTISOCIALIST. In this set, I is the most frequent open letter (17 words). 6 words contain a doubled letter.

Full list 20

acupuncturistadjudicationsannouncementsantibacterialantimacassarsantimicrobialarchduchessesaristocraciesartificialityacciaccaturasacetylcholineaeromechanicsaffranchisingarboricultureabstractionaladrenochromesaminoaciduriaantimechanistantirecessionantisocialist

About this list

Words
20 (9 common words)
Common example
acupuncturist
Rare example
antisocialist
Doubled letters
6
Ending in S
8
Most frequent letter
I (17)

Questions

How many 13-letter words matching a_____c______ are there?

20. 9 of them are common words.

What is a common example?

ACUPUNCTURIST is among the common words in this set.