13-Letter Words Matching _______O__O__

There are 17 13-letter words that match _______O__O__. 3 are common words, such as DISHARMONIOUS and SANCTIMONIOUS. A rarer one is UREDINIOSPORE. In this set, R is the most frequent open letter (14 words). 1 words contain a doubled letter.

Full list 17

disharmonioussanctimoniousunceremoniouschlamydosporechromatophoreclaustrophobemembranophonepharmacognosypharyngoscopepharyngoscopypneumatophorespermatophoretachistoscopecryptozoologyenterocoeloussigmoidoscopyurediniospore

About this list

Words
17 (3 common words)
Common example
disharmonious
Rare example
urediniospore
Doubled letters
1
Ending in S
4
Most frequent letter
R (14)

Questions

How many 13-letter words matching _______o__o__ are there?

17. 3 of them are common words.

What is a common example?

DISHARMONIOUS is among the common words in this set.