15-Letter Words Matching ____ST_________

There are 37 15-letter words that match ____ST_________. 11 are common words, such as CLAUSTROPHOBIAS and DEMYSTIFICATION. A rarer one is RESYSTEMATIZING. In this set, I is the most frequent open letter (37 words). 9 words contain a doubled letter.

Full list 37

Common words

claustrophobiasdemystificationdigestibilitiesdisestablishingillustriousnessindustrializingindustriousnessoverstimulatingpedestrianizingredistributionsundistinguishedbioastronautics
claustrophobiasdemystificationdigestibilitiesdisestablishingillustriousnessindustrializingindustriousnessoverstimulatingpedestrianizingredistributionsundistinguishedbioastronauticscoinstantaneousgyrostabilizersoverstimulationperistalticallyschistosomiasesschistosomiasissinistrodextraladjustabilitiescleistogamouslyhypostatizationindustrialisinginvestigationalkinestheticallymagistraticallymetastabilitiesnonastronomicaloverstabilitiespoststimulationpoststimulatorypreestablishingredistillationsreinstallationsresistibilitiesresistivenessesresystematizing

About this list

Words
37 (11 common words)
Common example
claustrophobias
Rare example
resystematizing
Doubled letters
9
Ending in S
17
Most frequent letter
I (37)

Questions

How many 15-letter words matching ____st_________ are there?

37. 11 of them are common words.

What is a common example?

CLAUSTROPHOBIAS is among the common words in this set.