15-Letter Words Matching ___________O_I_

There are 23 15-letter words that match ___________O_I_. 2 are common words, such as ATHEROSCLEROSIS and MICROELECTRONIC. A rarer one is THYROCALCITONIN. In this set, O is the most frequent open letter (22 words). 2 words contain a doubled letter.

Full list 23

atherosclerosismicroelectronicagranulocytosisatheroscleroticelectronarcosisphlebosclerosispleuropneumoniapsychodiagnosisradiotelephonicariboflavinosisboustrophedonichemochromatosishistopathologicimmunodiagnosisinterelectroniclignocellulosicneuropathologicophthalmoscopicphotoelectronicphytoplanktonicstrongyloidosissymptomatologicthyrocalcitonin

About this list

Words
23 (2 common words)
Common example
atherosclerosis
Rare example
thyrocalcitonin
Doubled letters
2
Ending in S
9
Most frequent letter
O (22)

Questions

How many 15-letter words matching ___________o_i_ are there?

23. 2 of them are common words.

What is a common example?

ATHEROSCLEROSIS is among the common words in this set.