12-Letter Words Matching _____R____M_

There are 30 12-letter words that match _____R____M_. 5 are common words, such as ANACHRONISMS and CARBORUNDUMS. A rarer one is SEMPERVIVUMS. In this set, S is the most frequent open letter (27 words). 4 words contain a doubled letter.

Full list 30

Common words

anachronismscarborundumshysterectomyinterregnumsmalapropismsantheridiumsantirrhinumsautoerotismschondriosomeclostridiumsisomorphismsoophorectomy
anachronismscarborundumshysterectomyinterregnumsmalapropismsantheridiumsantirrhinumsautoerotismschondriosomeclostridiumsisomorphismsoophorectomyspectrogramssynchronismsurethrectomyclitorectomycorporatismsdeuterostomeelectroformselectrogramsesotericismsgutturalismshighbrowismshistoricismsisochronismsmandarinismsoverprogramspastoralismspositroniumssempervivums

About this list

Words
30 (5 common words)
Common example
anachronisms
Rare example
sempervivums
Doubled letters
4
Ending in S
24
Most frequent letter
S (27)

Questions

How many 12-letter words matching _____r____m_ are there?

30. 5 of them are common words.

What is a common example?

ANACHRONISMS is among the common words in this set.