12-Letter Words Matching ________MM__

There are 12 12-letter words that match ________MM__. 4 are common words, such as CENTIGRAMMES and DEPROGRAMMED. A rarer one is PLASMALEMMAS. 12 words contain a doubled letter.

Full list 12

centigrammesdeprogrammedreprogrammedsledgehammerbreastsummerdeprogrammerkatzenjammerunprogrammedyellowhammermultistemmedphonogrammicplasmalemmas

About this list

Words
12 (4 common words)
Common example
centigrammes
Rare example
plasmalemmas
Doubled letters
12
Ending in S
2

Questions

How many 12-letter words matching ________mm__ are there?

12. 4 of them are common words.

What is a common example?

CENTIGRAMMES is among the common words in this set.