12-Letter Words Matching ______S___U_

There are 12 12-letter words that match ______S___U_. 3 are common words, such as BRONTOSAURUS and NONPOISONOUS. A rarer one is SEMILUSTROUS. In this set, O is the most frequent open letter (12 words). 1 words contain a doubled letter.

Full list 12

brontosaurusnonpoisonoussubconscioushypogastriumoverdesirousplesiosauruspreconsciousankylosaurusappressoriumnonconsciousoleoresinoussemilustrous

About this list

Words
12 (3 common words)
Common example
brontosaurus
Rare example
semilustrous
Doubled letters
1
Ending in S
10
Most frequent letter
O (12)

Questions

How many 12-letter words matching ______s___u_ are there?

12. 3 of them are common words.

What is a common example?

BRONTOSAURUS is among the common words in this set.