12-Letter Words Matching ______I_L___

There are 79 12-letter words that match ______I_L___. 19 are common words, such as BACTERIOLOGY and CATERPILLARS. A rarer one is VIGINTILLION. In this set, I is the most frequent open letter (59 words). 42 words contain a doubled letter.

Full list 79

Common words

bacteriologycaterpillarscollegialitycongenialityconvivialityeditorializeepidemiologyimpartialitymicrobiologyoverspillingparochialismpeccadilloes
bacteriologycaterpillarscollegialitycongenialityconvivialityeditorializeepidemiologyimpartialitymicrobiologyoverspillingparochialismpeccadilloespotentialityrockabilliestranquillesttranquillitytranquillizeultravioletsvaudevillianreinitializeamoxicillinsamphidiploidastrobiologybanderilleroconnubialitydefibrillateduodecillionecclesiologyeditorialistessentialismessentialistessentialityessentializeindisciplinemercurialismmercurialitymercurializemultimillionneurobiologyonomasiologypaleobiologyparochialityphytobiologyradiobiologysexdecillionsociobiologysubmaxillarytredecillionunfulfillingunifoliolateverticillateamoxycillinsaspergillumscloxacillinsconnubialismdisentitlinghydrobiologyintertillageintertillingintervillageliturgiologymethicillinsmicrovillousmultibillionnonsocialistoutcavillingoverchillingpathobiologyphotobiologypictorialismpictorialistpictorializepointtillistpremaxillaryrambouilletsredistillingtrifoliolateultraviolentvigintillion

About this list

Words
79 (19 common words)
Common example
bacteriology
Rare example
vigintillion
Doubled letters
42
Ending in S
11
Most frequent letter
I (59)

Questions

How many 12-letter words matching ______i_l___ are there?

79. 19 of them are common words.

What is a common example?

BACTERIOLOGY is among the common words in this set.