15-Letter Words Matching ___________OS__

There are 19 15-letter words that match ___________OS__. 3 are common words, such as ATHEROSCLEROSES and ATHEROSCLEROSIS. A rarer one is STRONGYLOIDOSIS. In this set, O is the most frequent open letter (19 words). 5 words contain a doubled letter.

Full list 19

atherosclerosesatherosclerosisnitrocellulosesagranulocytosesagranulocytosiscounterproposalelectronarcosisphlebosclerosispsychodiagnosisariboflavinosesariboflavinosishemochromatoseshemochromatosisimmunodiagnosesimmunodiagnosislignocelluloseslignocellulosicstrongyloidosesstrongyloidosis

About this list

Words
19 (3 common words)
Common example
atheroscleroses
Rare example
strongyloidosis
Doubled letters
5
Ending in S
17
Most frequent letter
O (19)

Questions

How many 15-letter words matching ___________os__ are there?

19. 3 of them are common words.

What is a common example?

ATHEROSCLEROSES is among the common words in this set.