12-Letter Words Matching _R____M_____

There are 21 12-letter words that match _R____M_____. 5 are common words, such as GRUESOMENESS and PROCLAMATION. A rarer one is TRANSAMINASE. In this set, O is the most frequent open letter (18 words). 9 words contain a doubled letter.

Full list 21

gruesomenessproclamationprogrammableprogrammaticprogrammingscraniometersergonometricgroundmassesprocommunismprocommunisttrichomonadstripalmitinscryptomeriaserythematousgradiometerspreformationpreformattedpreformulatepretermittedproblematicstransaminase

About this list

Words
21 (5 common words)
Common example
gruesomeness
Rare example
transaminase
Doubled letters
9
Ending in S
10
Most frequent letter
O (18)

Questions

How many 12-letter words matching _r____m_____ are there?

21. 5 of them are common words.

What is a common example?

GRUESOMENESS is among the common words in this set.