12-Letter Words Matching _____R___O__

There are 100 12-letter words that match _____R___O__. 50 are common words, such as ADUMBRATIONS and ARBITRATIONS. A rarer one is VASOPRESSORS. In this set, T is the most frequent open letter (91 words). 12 words contain a doubled letter.

Full list 100

Common words

adumbrationsarbitrationsbacteriologycalibrationscarburettorscelebrationscerebrationsconjurationsconservatorsconservatoryconstrictorsconstructors
adumbrationsarbitrationsbacteriologycalibrationscarburettorscelebrationscerebrationsconjurationsconservatorsconservatoryconstrictorsconstructorsconterminouscooperationscorporationsdeclarationsdehydrationsdenigrationsdesecrationsdesperationselaborationselectroscopeelectroshockenumerationsevaporationsexonerationsexplorationsfrustrationshysterectomyimmigrationsinspirationsintegrationslucubrationsmasterstrokemasturbatorymeliorationsmensurationsmeretriciousparturitionspenetrationsperforationspreparationsprostrationsreiterationsrespirationsrestorationssemipreciousspectroscopespectroscopysuppurationsconfirmatorybotherationsburseraceouschondriosomedessertspoonelectrophoneelectrophorienchiridionsfurfuraceousmasturbatorsmicturitionsmurmurationsoophorectomypreteritionssubdirectorysubthresholdsynchroscopesynchrotronstelegraphoneurethrectomyurethroscopebumbershootscarburetionsclitorectomycompurgatorscorepressorsdeflorationsdeuterationsdeuterostomedissertatorsenamorationsfulgurationsimpetrationsinterruptorsitinerationsmercurationsobscurationsperformatoryperitrichouspicturephoneprocurationsrehydrationsremigrationsreoperationssubdirectorssuspirationssusurrationstriturationsuncourageousvasopressors

About this list

Words
100 (50 common words)
Common example
adumbrations
Rare example
vasopressors
Doubled letters
12
Ending in S
75
Most frequent letter
T (91)

Questions

How many 12-letter words matching _____r___o__ are there?

100. 50 of them are common words.

What is a common example?

ADUMBRATIONS is among the common words in this set.