13-Letter Words Matching _____E______C

There are 18 13-letter words that match _____E______C. 3 are common words, such as HYDROELECTRIC and PHOTOELECTRIC. A rarer one is TURBOELECTRIC. In this set, I is the most frequent open letter (18 words). 2 words contain a doubled letter.

Full list 18

hydroelectricphotoelectricsocioeconomicferroelectricisoelectronicmacroeconomicmicroeconomicpiezoelectricantimetabolichyperesthetichypereutecticimmanentisticinterepidemicnonelectronicpaleoecologicpreanesthetictriboelectricturboelectric

About this list

Words
18 (3 common words)
Common example
hydroelectric
Rare example
turboelectric
Doubled letters
2
Ending in S
0
Most frequent letter
I (18)

Questions

How many 13-letter words matching _____e______c are there?

18. 3 of them are common words.

What is a common example?

HYDROELECTRIC is among the common words in this set.