15-Letter Words Starting With BI

There are 24 15-letter words that start with BI. 4 are common words, such as BIBLIOGRAPHICAL and BIDIRECTIONALLY. A rarer one is BITUMINIZATIONS. In this set, I is the most frequent open letter (23 words). 4 words contain a doubled letter.

Full list 24

bibliographicalbidirectionallybiotechnologiesbipartisanshipsbioastronauticsbioengineeringsbiogeochemistrybioluminescencebioremediationsbiotechnologistbibliotherapiesbidialectalismsbioavailabilitybiodegradationsbiogeochemicalsbiogeographicalbiomathematicalbiomechanicallybiostatisticianbiostratigraphybiosystematistsbipolarizationsbittersweetnessbituminizations

About this list

Words
24 (4 common words)
Common example
bibliographical
Rare example
bituminizations
Doubled letters
4
Ending in S
13
Most frequent letter
I (23)

Questions

How many 15-letter words starting with bi are there?

24. 4 of them are common words.

What is a common example?

BIBLIOGRAPHICAL is among the common words in this set.