14-Letter Words Matching _U_____L______

There are 20 14-letter words that match _U_____L______. 3 are common words, such as QUADRUPLICATED and QUADRUPLICATES. A rarer one is VULCANOLOGISTS. In this set, I is the most frequent open letter (17 words). 5 words contain a doubled letter.

Full list 20

quadruplicatedquadruplicatessuperciliouslyquadrillionthsquintillionthssubpopulationssulfanilamidessupramolecularvulcanologicalguilefulnessesmultifilamentsmultimolecularmultireligiousquintuplicatedquintuplicatessubdevelopmentsubmaxillariessupercalenderssupercollidersvulcanologists

About this list

Words
20 (3 common words)
Common example
quadruplicated
Rare example
vulcanologists
Doubled letters
5
Ending in S
13
Most frequent letter
I (17)

Questions

How many 14-letter words matching _u_____l______ are there?

20. 3 of them are common words.

What is a common example?

QUADRUPLICATED is among the common words in this set.