12-Letter Words Matching _____B_____Y

There are 17 12-letter words that match _____B_____Y. 3 are common words, such as AMPHIBIOUSLY and MICROBIOLOGY. A rarer one is PHOTOBIOLOGY. In this set, I is the most frequent open letter (16 words). 3 words contain a doubled letter.

Full list 17

amphibiouslymicrobiologymicrobreweryastrobiologycherubicallyconnubialityneurobiologypaleobiologyphytobiologyprotuberancyradiobiologysociobiologysyllabicallyhydrobiologynonarbitrarypathobiologyphotobiology

About this list

Words
17 (3 common words)
Common example
amphibiously
Rare example
photobiology
Doubled letters
3
Ending in S
0
Most frequent letter
I (16)

Questions

How many 12-letter words matching _____b_____y are there?

17. 3 of them are common words.

What is a common example?

AMPHIBIOUSLY is among the common words in this set.