12-Letter Words Matching ____A______C

There are 17 12-letter words that match ____A______C. 4 are common words, such as ALPHANUMERIC and BUREAUCRATIC. A rarer one is VOLCANOLOGIC. In this set, I is the most frequent open letter (17 words). 1 words contain a doubled letter.

Full list 17

alphanumericbureaucraticneurastheniconomatopoeicantiallergicarchaeologicclimatologicintracardiacnonparasiticpropaedeuticantiacademicavitaminoticcompatrioticdermatologicextrahepaticintrapsychicvolcanologic

About this list

Words
17 (4 common words)
Common example
alphanumeric
Rare example
volcanologic
Doubled letters
1
Ending in S
0
Most frequent letter
I (17)

Questions

How many 12-letter words matching ____a______c are there?

17. 4 of them are common words.

What is a common example?

ALPHANUMERIC is among the common words in this set.