12-Letter Words Matching ________OS__

There are 58 12-letter words that match ________OS__. 14 are common words, such as AVITAMINOSES and AVITAMINOSIS. A rarer one is UNDECOMPOSED. In this set, S is the most frequent open letter (54 words). 3 words contain a doubled letter.

Full list 58

Common words

avitaminosesavitaminosismisdiagnosedmisdiagnosesmisdiagnosisosteoporosesosteoporosisrhinocerosessuperimposedsuperimposestuberculosestuberculosis
avitaminosesavitaminosismisdiagnosedmisdiagnosesmisdiagnosisosteoporosesosteoporosisrhinocerosessuperimposedsuperimposestuberculosestuberculosisunderexposedunderexposesaeroneurosisanamorphosesanamorphosisautohypnosisbladdernosesdeoxyribosesepanorthosesepanorthosisepimorphosisfurunculosishallucinosishyperostosisleucocytosisphagocytosispsychognosissarcomatosisanaerobiosesanaerobiosisanaplasmosesanaplasmosisanthracnosesautohypnosescatholicosescounterposedcounterposesdichlorvosesfurunculoseshallucinoseshyperostosesleukocytosesleukocytosismacrocytosesmacrocytosisotosclerosesotosclerosisphagocytosedphagocytosespolyhedrosespolyhedrosispronephrosessarcomatosessynarthrosessynarthrosisundecomposed

About this list

Words
58 (14 common words)
Common example
avitaminoses
Rare example
undecomposed
Doubled letters
3
Ending in S
52
Most frequent letter
S (54)

Questions

How many 12-letter words matching ________os__ are there?

58. 14 of them are common words.

What is a common example?

AVITAMINOSES is among the common words in this set.