12-Letter Words Matching _______M_C__

There are 14 12-letter words that match _______M_C__. 4 are common words, such as ARRHYTHMICAL and ASTRONOMICAL. A rarer one is STREPTOMYCES. In this set, I is the most frequent open letter (13 words). 1 words contain a doubled letter.

Full list 14

arrhythmicalastronomicalstreptomycinuneconomicalagrochemicalerythromycinpyrochemicaltragicomicalagrichemicalcytochemicalheroicomicalmetronomicaloleandomycinstreptomyces

About this list

Words
14 (4 common words)
Common example
arrhythmical
Rare example
streptomyces
Doubled letters
1
Ending in S
1
Most frequent letter
I (13)

Questions

How many 12-letter words matching _______m_c__ are there?

14. 4 of them are common words.

What is a common example?

ARRHYTHMICAL is among the common words in this set.