13-Letter Words Matching ________M_C__

There are 13 13-letter words that match ________M_C__. 2 are common words, such as GASTRONOMICAL and PETROCHEMICAL. A rarer one is SPECTINOMYCIN. In this set, O is the most frequent open letter (13 words). 1 words contain a doubled letter.

Full list 13

gastronomicalpetrochemicalaerodynamicalcosmochemicallogarithmicalmicrocosmicalphotochemicalphytochemicalradiochemicalhistochemicalneurochemicalsaccharomycesspectinomycin

About this list

Words
13 (2 common words)
Common example
gastronomical
Rare example
spectinomycin
Doubled letters
1
Ending in S
1
Most frequent letter
O (13)

Questions

How many 13-letter words matching ________m_c__ are there?

13. 2 of them are common words.

What is a common example?

GASTRONOMICAL is among the common words in this set.