14-Letter Words Matching _________E_R__

There are 12 14-letter words that match _________E_R__. 0 are common words, such as ANTHROPOMETRIC and STOICHIOMETRIC. A rarer one is SUPERSYMMETRIC. In this set, I is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

anthropometricstoichiometrictrisoctahedronconductimetricconductometriccraniocerebralintervertebraloverengineeredpotentiometricpyrheliometricrefractometricsupersymmetric

About this list

Words
12 (0 common words)
Common example
anthropometric
Rare example
supersymmetric
Doubled letters
2
Ending in S
0
Most frequent letter
I (12)

Questions

How many 14-letter words matching _________e_r__ are there?

12. 0 of them are common words.

What is a common example?

ANTHROPOMETRIC is among the common words in this set.