13-Letter Words Matching ______O____U_

There are 22 13-letter words that match ______O____U_. 2 are common words, such as STREPTOCOCCUS and TYRANNOSAURUS. A rarer one is ULTRAPOWERFUL. In this set, S is the most frequent open letter (19 words). 4 words contain a doubled letter.

Full list 22

streptococcustyrannosaurusarteriovenousbrachiosauruscarcinomatouselectrophorushypochondriumichthyosaurusnonhomologousperichondriumprolegomenousrhizomorphouscleistogamouscondylomatousgranulomatousmeningococcusnonautonomousnonmonogamouspapillomatouspolychotomoussuperpowerfulultrapowerful

About this list

Words
22 (2 common words)
Common example
streptococcus
Rare example
ultrapowerful
Doubled letters
4
Ending in S
18
Most frequent letter
S (19)

Questions

How many 13-letter words matching ______o____u_ are there?

22. 2 of them are common words.

What is a common example?

STREPTOCOCCUS is among the common words in this set.