13-Letter Words Matching _____M____C__

There are 18 13-letter words that match _____M____C__. 7 are common words, such as CIRCUMSTANCED and CIRCUMSTANCES. A rarer one is SEMIEMPIRICAL. 3 words contain a doubled letter.

Full list 18

circumstancedcircumstancesdissemblancesimpermanencespredominancesungrammaticalunsymmetricalconcomitancesdipsomaniacaleconometricalgravimetricalhydrometricalphotometricalsociometricalalchemisticalbathymetricalhypermetricalsemiempirical

About this list

Words
18 (7 common words)
Common example
circumstanced
Rare example
semiempirical
Doubled letters
3
Ending in S
5

Questions

How many 13-letter words matching _____m____c__ are there?

18. 7 of them are common words.

What is a common example?

CIRCUMSTANCED is among the common words in this set.