14-Letter Words Matching M____________R

There are 12 14-letter words that match M____________R. 2 are common words, such as MICROPROCESSOR and MULTIPROCESSOR. A rarer one is MULTIPARAMETER. 4 words contain a doubled letter.

Full list 12

microprocessormultiprocessormacromolecularmisinterpretermetallographermicrofibrillarmicroprojectormicropublishermulticharactermulticonductormultimolecularmultiparameter

About this list

Words
12 (2 common words)
Common example
microprocessor
Rare example
multiparameter
Doubled letters
4
Ending in S
0

Questions

How many 14-letter words matching m____________r are there?

12. 2 of them are common words.

What is a common example?

MICROPROCESSOR is among the common words in this set.