13-Letter Words Matching ___O____O____

There are 41 13-letter words that match ___O____O____. 14 are common words, such as COLONOSCOPIES and ENDOCRINOLOGY. A rarer one is UNFORTHCOMING. In this set, I is the most frequent open letter (35 words). 3 words contain a doubled letter.

Full list 41

Common words

colonoscopiesendocrinologygerontologiesgerontologisthomogeneouslyignominiouslyincongruouslyreformatoriesrevolutionaryrevolutioniserevolutionistrevolutionize
colonoscopiesendocrinologygerontologiesgerontologisthomogeneouslyignominiouslyincongruouslyreformatoriesrevolutionaryrevolutioniserevolutionistrevolutionizeunconsciousesunconsciouslyagrobiologiesallochthonousautochthonouschromoproteindemolitionistdevolutionarydevolutionistembolectomiesfluoroscopiesillocutionaryinvolutionaryrepositioningrevolutionismaerobiologiesaldosteronismautoradiogramcacophonouslychronobiologycryobiologiescryobiologistfluoroscopingfluoroscopistinformatorilymonophthongaloppositionistpogonophoransunforthcoming

About this list

Words
41 (14 common words)
Common example
colonoscopies
Rare example
unforthcoming
Doubled letters
3
Ending in S
12
Most frequent letter
I (35)

Questions

How many 13-letter words matching ___o____o____ are there?

41. 14 of them are common words.

What is a common example?

COLONOSCOPIES is among the common words in this set.