13-Letter Words Matching ________L___R

There are 18 13-letter words that match ________L___R. 2 are common words, such as PASSIONFLOWER and TRANQUILLIZER. A rarer one is WHISTLEBLOWER. In this set, E is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 18

passionflowertranquillizerclishmaclavercongratulatordefibrillatordemineralizereditorializerextracellularintercellularintracellularmulticellularsupercolliderblanketflowercounterplayerdemultiplexerinterpellatormultiemployerwhistleblower

About this list

Words
18 (2 common words)
Common example
passionflower
Rare example
whistleblower
Doubled letters
9
Ending in S
0
Most frequent letter
E (17)

Questions

How many 13-letter words matching ________l___r are there?

18. 2 of them are common words.

What is a common example?

PASSIONFLOWER is among the common words in this set.