13-Letter Words Matching ______B_A____

There are 19 13-letter words that match ______B_A____. 3 are common words, such as ANTISUBMARINE and DISSEMBLANCES. A rarer one is TROPHOBLASTIC. In this set, I is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 19

antisubmarinedissemblancesrattlebrainedelasmobranchsequilibratingequilibrationproverbialityrecalibratingrecalibrationrollerbladingdecerebratingdecerebrationequilibratorsequilibratorylymphoblasticmegaloblasticodontoblastictriploblastictrophoblastic

About this list

Words
19 (3 common words)
Common example
antisubmarine
Rare example
trophoblastic
Doubled letters
3
Ending in S
3
Most frequent letter
I (18)

Questions

How many 13-letter words matching ______b_a____ are there?

19. 3 of them are common words.

What is a common example?

ANTISUBMARINE is among the common words in this set.