11-Letter Words Matching ________R_M

There are 12 11-letter words that match ________R_M. 1 are common words, such as CANDELABRUM and DACTYLOGRAM. A rarer one is SCATTERGRAM. In this set, A is the most frequent open letter (11 words). 4 words contain a doubled letter.

Full list 12

candelabrumdactylogramhydrargyrumoscillogramphraseogramspectrogramsyllabogramarteriogramelectrogramoverprogrampittosporumscattergram

About this list

Words
12 (1 common words)
Common example
candelabrum
Rare example
scattergram
Doubled letters
4
Ending in S
0
Most frequent letter
A (11)

Questions

How many 11-letter words matching ________r_m are there?

12. 1 of them are common words.

What is a common example?

CANDELABRUM is among the common words in this set.