14-Letter Words Matching ______I__O____

There are 54 14-letter words that match ______I__O____. 15 are common words, such as ADVENTITIOUSLY and BACTERIOLOGIES. A rarer one is ULTRAMICROTOMY. In this set, I is the most frequent open letter (49 words). 3 words contain a doubled letter.

Full list 54

Common words

adventitiouslybacteriologiesbacteriologistepidemiologiesepidemiologistinauspiciouslymeretriciouslymicrobiologiesmicrobiologistnonreciprocalsprohibitionistpropositioning
adventitiouslybacteriologiesbacteriologistepidemiologiesepidemiologistinauspiciouslymeretriciouslymicrobiologiesmicrobiologistnonreciprocalsprohibitionistpropositioningreconditioningrequisitioningsuperciliouslyinquisitionistpaleobiologiespaleobiologistprotohistoriesrepartitioningsociobiologiessociobiologistsuppositiouslyunpropitiouslyastrobiologiesastrobiologistbiconditionalsdeconditioningecclesiologiesecclesiologistethnohistorianethnohistorieshydrobiologieshydrobiologisthyperviscosityliturgiologiesliturgiologistmispositioningneurobiologiesneurobiologistneurofibromatanonantibioticspathobiologiesperitrichouslyphotobiologiesphotobiologistprerevisionistprotohistorianradiobiologiesradiobiologistreprovisioningsuperdiplomatsultramicrotomeultramicrotomy

About this list

Words
54 (15 common words)
Common example
adventitiously
Rare example
ultramicrotomy
Doubled letters
3
Ending in S
19
Most frequent letter
I (49)

Questions

How many 14-letter words matching ______i__o____ are there?

54. 15 of them are common words.

What is a common example?

ADVENTITIOUSLY is among the common words in this set.