15-Letter Words Matching ____O______L___

There are 21 15-letter words that match ____O______L___. 4 are common words, such as PHOTOJOURNALISM and PHOTOJOURNALIST. A rarer one is PHYTOFLAGELLATE. In this set, P is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 21

photojournalismphotojournalistproportionalityunsportsmanlikeapproachabilityethnomusicologyneurophysiologypaleopsychologyphenolphthaleinphotomultiplierreproducibilityunprofitabilitydephosphorylatedorsoventralityhistophysiologyhypnotizabilitymicromorphologyneurofibrillaryneuropsychologypathophysiologyphytoflagellate

About this list

Words
21 (4 common words)
Common example
photojournalism
Rare example
phytoflagellate
Doubled letters
3
Ending in S
0
Most frequent letter
P (18)

Questions

How many 15-letter words matching ____o______l___ are there?

21. 4 of them are common words.

What is a common example?

PHOTOJOURNALISM is among the common words in this set.