10-Letter Words Matching ____I__U__

There are 22 10-letter words that match ____I__U__. 7 are common words, such as ALUMINIUMS and AMERICIUMS. A rarer one is OVERISSUES. In this set, S is the most frequent open letter (14 words). 9 words contain a doubled letter.

Full list 22

aluminiumsamericiumsautoimmunecontinuumsinquietudeodalisquespresidiumsattainturecommissurecommixturemulligrubsnunciatureoverinsurepycnidiumssublingualtrilingualunilingualcallithumpcymbidiumsololiuquisoverissuedoverissues

About this list

Words
22 (7 common words)
Common example
aluminiums
Rare example
overissues
Doubled letters
9
Ending in S
10
Most frequent letter
S (14)

Questions

How many 10-letter words matching ____i__u__ are there?

22. 7 of them are common words.

What is a common example?

ALUMINIUMS is among the common words in this set.