13-Letter Words Matching _____L__R____

There are 21 13-letter words that match _____L__R____. 5 are common words, such as BACCALAUREATE and DENUCLEARIZED. A rarer one is TURBELLARIANS. In this set, A is the most frequent open letter (19 words). 9 words contain a doubled letter.

Full list 21

baccalaureatedenuclearizeddenuclearizesschoolmarmishunadulteratedapiculturistsdactylographylamellibranchmetallographymethylmercurynonfilterableoscillographsaviculturistsbraillewriterconcelebrantsconcelebratedconcelebratesflugelhornistoscillographysubculturallyturbellarians

About this list

Words
21 (5 common words)
Common example
baccalaureate
Rare example
turbellarians
Doubled letters
9
Ending in S
7
Most frequent letter
A (19)

Questions

How many 13-letter words matching _____l__r____ are there?

21. 5 of them are common words.

What is a common example?

BACCALAUREATE is among the common words in this set.