15-Letter Words Matching ____A_______O__

There are 13 15-letter words that match ____A_______O__. 3 are common words, such as BASTARDIZATIONS and MISCALCULATIONS. A rarer one is ULTRAPRECISIONS. In this set, S is the most frequent open letter (13 words). 4 words contain a doubled letter.

Full list 13

bastardizationsmiscalculationsprefabricationsdissatisfactoryretransmissionssarraceniaceousultramicroscopecotransductionsfantasticationssomnambulationstetragrammatonsultrafastidiousultraprecisions

About this list

Words
13 (3 common words)
Common example
bastardizations
Rare example
ultraprecisions
Doubled letters
4
Ending in S
11
Most frequent letter
S (13)

Questions

How many 15-letter words matching ____a_______o__ are there?

13. 3 of them are common words.

What is a common example?

BASTARDIZATIONS is among the common words in this set.