12-Letter Words Matching ____M_____R_

There are 24 12-letter words that match ____M_____R_. 8 are common words, such as ACCUMULATORS and CALUMNIATORS. A rarer one is SNOWMOBILERS. 8 words contain a doubled letter.

Full list 24

accumulatorscalumniatorsdenominatorseleemosynaryparamilitarysteamfitterssteamrollersthermometersassimilatorychromospheredynamometersforaminifersintimidatoryseismometersthermosphereantimilitaryassimilatorsbroomballersforaminiferailluminatorsindemnifiersinseminatorsintimidatorssnowmobilers

About this list

Words
24 (8 common words)
Common example
accumulators
Rare example
snowmobilers
Doubled letters
8
Ending in S
16

Questions

How many 12-letter words matching ____m_____r_ are there?

24. 8 of them are common words.

What is a common example?

ACCUMULATORS is among the common words in this set.