13-Letter Words Matching ____I__O_____

There are 44 13-letter words that match ____I__O_____. 13 are common words, such as ABOLITIONISMS and ABOLITIONISTS. A rarer one is UREDINIOSPORE. In this set, I is the most frequent open letter (39 words). 8 words contain a doubled letter.

Full list 44

Common words

abolitionismsabolitionistscardiologistscoalitionistsconditionallyconditioningsnutritionallynutritionistsphysiologicalphysiologistsprehistoricalprovisionally
abolitionismsabolitionistscardiologistscoalitionistsconditionallyconditioningsnutritionallynutritionistsphysiologicalphysiologistsprehistoricalprovisionallytraditionallyamphiprostylecardiologicalclavichordistglaciologicalglaciologistsintuitionallyintuitionismsnondiplomaticnonhistoricalprehistorianstachistoscopetheriomorphictraditionlessamphiploidiesbibliopolistscaulifloweretcollisionallyconditionabledegringoladesexobiologicalexobiologistsgossipmongersintuitionistsnonbiologicalnonbiologistsoverinformingparkinsonismspartitionistsprebiologicalprecisionistsurediniospore

About this list

Words
44 (13 common words)
Common example
abolitionisms
Rare example
urediniospore
Doubled letters
8
Ending in S
21
Most frequent letter
I (39)

Questions

How many 13-letter words matching ____i__o_____ are there?

44. 13 of them are common words.

What is a common example?

ABOLITIONISMS is among the common words in this set.