13-Letter Words Matching __I___O______

There are 24 13-letter words that match __I___O______. 14 are common words, such as CLIMATOLOGIES and CLIMATOLOGIST. A rarer one is TRICHLORPHONS. In this set, S is the most frequent open letter (22 words). 4 words contain a doubled letter.

Full list 24

climatologiesclimatologistcriminologiescriminologistfrivolousnessneighborhoodsphilosophicalphilosophizedphilosophizerphilosophizesreintroducingtrigonometricwainscottingswhippoorwillsoligopolisticprimatologiesrhizomorphoustrichromatismopisthobranchphilosophisedphilosophisespoikilothermsprimatologisttrichlorphons

About this list

Words
24 (14 common words)
Common example
climatologies
Rare example
trichlorphons
Doubled letters
4
Ending in S
12
Most frequent letter
S (22)

Questions

How many 13-letter words matching __i___o______ are there?

24. 14 of them are common words.

What is a common example?

CLIMATOLOGIES is among the common words in this set.