13-Letter Words Matching ________O__A_

There are 37 13-letter words that match ________O__A_. 9 are common words, such as AMBASSADORIAL and ANTIMICROBIAL. A rarer one is TECHNOPHOBIAS. In this set, R is the most frequent open letter (31 words). 9 words contain a doubled letter.

Full list 37

Common words

ambassadorialantimicrobialgubernatorialinquisitorialonomatopoeiasparallelogramproprietorialstreptococcalvaledictoriancombinatorialdeuteranopiasencephalogram
ambassadorialantimicrobialgubernatorialinquisitorialonomatopoeiasparallelogramproprietorialstreptococcalvaledictoriancombinatorialdeuteranopiasencephalogramexterritoriallegislatorialnongonococcalprogenitorialprosopopoeiasroentgenogramsubequatorialterpsichoreanailurophobiasautoradiogramcholangiogramcrystalloidalexpurgatorialhyperboloidalintercolonialinterferogramlollapaloozasmeningococcalmonophthongalplethysmogramprocuratorialprosecutorialsupercolossalsynarthrodialtechnophobias

About this list

Words
37 (9 common words)
Common example
ambassadorial
Rare example
technophobias
Doubled letters
9
Ending in S
6
Most frequent letter
R (31)

Questions

How many 13-letter words matching ________o__a_ are there?

37. 9 of them are common words.

What is a common example?

AMBASSADORIAL is among the common words in this set.