12-Letter Words Matching ______R_M___

There are 22 12-letter words that match ______R_M___. 7 are common words, such as CENTIGRAMMES and DEPROGRAMING. A rarer one is POLYCHROMIES. In this set, O is the most frequent open letter (20 words). 7 words contain a doubled letter.

Full list 22

centigrammesdeprogramingdeprogrammednorthernmostreprogramingreprogrammedsouthernmostdeprogrammerheadforemosthomochromouspalindromistpolychromingpolychromoussuperpremiumunprogrammedaccoutrementantithrombincounterimagemonochromatsmonochromistphonogrammicpolychromies

About this list

Words
22 (7 common words)
Common example
centigrammes
Rare example
polychromies
Doubled letters
7
Ending in S
5
Most frequent letter
O (20)

Questions

How many 12-letter words matching ______r_m___ are there?

22. 7 of them are common words.

What is a common example?

CENTIGRAMMES is among the common words in this set.