13-Letter Words Matching ____I_O______

There are 55 13-letter words that match ____I_O______. 11 are common words, such as BELLICOSITIES and CARCINOGENICS. A rarer one is WORRISOMENESS. In this set, S is the most frequent open letter (46 words). 10 words contain a doubled letter.

Full list 55

Common words

bellicositiescarcinogenicscarnivorouslycriminologiescriminologistimprisonmentskaleidoscopeskaleidoscopicmagniloquenceterminologiestragicomediesaluminothermy
bellicositiescarcinogenicscarnivorouslycriminologiescriminologistimprisonmentskaleidoscopeskaleidoscopicmagniloquenceterminologiestragicomediesaluminothermyamphibologiescarcinomatouschemisorptiondeclinometersdensitometersfibrinolysinsglutinositiesglutinousnessherbivorouslyinclinometersisodimorphismmachicolationmarsipobranchmastigophoranmatrimoniallypteridophytessensitometersterminologistterritoriallytorticollisesunanimousnesswearisomenesscorticotropindensitometricempoisonmentsmilliroentgenmultihospitalmultipolaritypantisocraticpeptidoglycanpettifoggingspoikilothermspostisolationpteridologiespteridologistpteridospermsrespirometersrespirometricsensitometricsurvivorshipsvictimologiesvictimologistworrisomeness

About this list

Words
55 (11 common words)
Common example
bellicosities
Rare example
worrisomeness
Doubled letters
10
Ending in S
29
Most frequent letter
S (46)

Questions

How many 13-letter words matching ____i_o______ are there?

55. 11 of them are common words.

What is a common example?

BELLICOSITIES is among the common words in this set.