12-Letter Words Matching ________U_U_

There are 14 12-letter words that match ________U_U_. 4 are common words, such as BRONTOSAURUS and CONTEMPTUOUS. A rarer one is POSTSTIMULUS. 1 words contain a doubled letter.

Full list 14

brontosauruscontemptuousdisingenuouspresumptuouscircumfluouscirrocumulusdiverticulumhibernaculuminfundibulumplesiosaurustranspicuousankylosaurusnonambiguouspoststimulus

About this list

Words
14 (4 common words)
Common example
brontosaurus
Rare example
poststimulus
Doubled letters
1
Ending in S
11

Questions

How many 12-letter words matching ________u_u_ are there?

14. 4 of them are common words.

What is a common example?

BRONTOSAURUS is among the common words in this set.