12-Letter Words Matching ______O__S__

There are 115 12-letter words that match ______O__S__. 46 are common words, such as ABORTIONISTS and ANACHRONISMS. A rarer one is WORKAHOLISMS. In this set, I is the most frequent open letter (108 words). 10 words contain a doubled letter.

Full list 115

Common words

abortionistsanachronismsanthologistsarchdiocesanarchdiocesesastrologistsaudiologistsbehaviorismsbehavioristschiropodistscosmogonistscosmologists
abortionistsanachronismsanthologistsarchdiocesanarchdiocesesastrologistsaudiologistsbehaviorismsbehavioristschiropodistscosmogonistscosmologistscreationismscreationistselectrolyseselectrolysisethnologistsetymologistsgenealogistshistologistshoneylocustshydrologistsillusionistsintercoursesmalapropismsmetropolisesmythologistsnecropolisesneurologistsosteoporosesosteoporosispathologistspetrologistsphilologistsphonologistsphosphorusesprotagonistsradiologistsrevisionismsrevisionistssaxophonistssociologiststobacconistsvacationistswatercoursesxylophonistsautoerotismscataphoresescataphoresisdiplodocusesdisafforestsfibrinolysesfibrinolysinfibrinolysisleucopoiesisphosphorescereligionistssynchronismstelephonistsaccessorisedaccessorisesadoptionismsadoptionistsbabesiosisesconveyorisedconveyorisescosmopolisesdichotomistsdisunionistsdivisionismsdivisionistsetymologisedetymologiseseudaemonismseudaemonistseudaimonismsextemporisedextemporisesexteriorisedexteriorisesgemmologistshighbrowismshyperbolistsillusionismsinteriorisedinteriorisesiridologistsisochronismsleukopoiesesleukopoiesislimnologistsmalapropistsmammalogistsmetrologistsmulticoursesmuseologistsnecrologistsosteologistsoverpromisedoverpromisesphycologistspollenosisespollinosisespolyglotismssemiologistsskeletonisedskeletonisessociologesesstreptolysinsynchronisedsynchronisestaphonomiststeleologiststribologistsworkaholisms

About this list

Words
115 (46 common words)
Common example
abortionists
Rare example
workaholisms
Doubled letters
10
Ending in S
102
Most frequent letter
I (108)

Questions

How many 12-letter words matching ______o__s__ are there?

115. 46 of them are common words.

What is a common example?

ABORTIONISTS is among the common words in this set.