14-Letter Words Matching _____U_L______

There are 16 14-letter words that match _____U_L______. 7 are common words, such as DISEQUILIBRIUM and HABITUALNESSES. A rarer one is TRANQUILNESSES. In this set, I is the most frequent open letter (16 words). 5 words contain a doubled letter.

Full list 16

disequilibriumhabitualnessesquadruplicatedquadruplicatestranquillitiestranquillizerstranquillizingdisequilibratemononucleotidenonequilibriumpolynucleotidequintuplicatedquintuplicatesribonucleosideribonucleotidetranquilnesses

About this list

Words
16 (7 common words)
Common example
disequilibrium
Rare example
tranquilnesses
Doubled letters
5
Ending in S
6
Most frequent letter
I (16)

Questions

How many 14-letter words matching _____u_l______ are there?

16. 7 of them are common words.

What is a common example?

DISEQUILIBRIUM is among the common words in this set.