12-Letter Words Matching ___E_____U__

There are 22 12-letter words that match ___E_____U__. 4 are common words, such as HETEROSEXUAL and INTELLECTUAL. A rarer one is RECENTRIFUGE. In this set, R is the most frequent open letter (19 words). 6 words contain a doubled letter.

Full list 22

heterosexualintellectualinterregnumsnomenclatureforepleasureinterlingualintermixtureintertexturesuperconductsuperphylumssupersensualunderproducevenepunctureantependiumsaspergillumsbreechcloutsemmenagoguesinterboroughintercultureinterdiffuseinterstimulirecentrifuge

About this list

Words
22 (4 common words)
Common example
heterosexual
Rare example
recentrifuge
Doubled letters
6
Ending in S
6
Most frequent letter
R (19)

Questions

How many 12-letter words matching ___e_____u__ are there?

22. 4 of them are common words.

What is a common example?

HETEROSEXUAL is among the common words in this set.