13-Letter Words Matching ____O____C___

There are 27 13-letter words that match ____O____C___. 5 are common words, such as DESPONDENCIES and NONCOMMERCIAL. A rarer one is SIGMOIDOSCOPY. In this set, I is the most frequent open letter (21 words). 4 words contain a doubled letter.

Full list 27

Common words

despondenciesnoncommercialschoolteachersubcontractedsubcontractorachromaticitymacromoleculenongonococcalosteomalaciaspathogenicitysonsofbitchesdaunorubicins
despondenciesnoncommercialschoolteachersubcontractedsubcontractorachromaticitymacromoleculenongonococcalosteomalaciaspathogenicitysonsofbitchesdaunorubicinsdiscordanciesferrosiliconsgeopoliticianmeteoriticistmicroinjectedmicroswitchesneurotoxicitynonpoliticianoutpolitickedphotodetectorphotoreducingphototoxicityphytotoxicitysaprogenicitysigmoidoscopy

About this list

Words
27 (5 common words)
Common example
despondencies
Rare example
sigmoidoscopy
Doubled letters
4
Ending in S
7
Most frequent letter
I (21)

Questions

How many 13-letter words matching ____o____c___ are there?

27. 5 of them are common words.

What is a common example?

DESPONDENCIES is among the common words in this set.