12-Letter Words Matching ________R_L_

There are 29 12-letter words that match ________R_L_. 6 are common words, such as CHOLESTEROLS and COMPULSORILY. A rarer one is TETRAPYRROLE. In this set, I is the most frequent open letter (22 words). 2 words contain a doubled letter.

Full list 29

Common words

cholesterolscompulsorilyderogatorilyequilateralsobligatorilyperemptorilyblackguardlychrysoberylselementarilyhereditarilyrefractorilysanguinarily
cholesterolscompulsorilyderogatorilyequilateralsobligatorilyperemptorilyblackguardlychrysoberylselementarilyhereditarilyrefractorilysanguinarilystilbestrolssubsidiarilytransitorilyacetonitrileadmonitorilyambulatorilyantiliberalscircumcircledimercaprolsintersterilemicrofibrilsneurofibrilsnontemporalsovercontrolsphytosterolssublittoralstetrapyrrole

About this list

Words
29 (6 common words)
Common example
cholesterols
Rare example
tetrapyrrole
Doubled letters
2
Ending in S
12
Most frequent letter
I (22)

Questions

How many 12-letter words matching ________r_l_ are there?

29. 6 of them are common words.

What is a common example?

CHOLESTEROLS is among the common words in this set.