15-Letter Words Matching _____E_____O___

There are 13 15-letter words that match _____E_____O___. 1 are common words, such as MICROELECTRONIC and COUNTERPROPOSAL. A rarer one is PHOTOELECTRONIC. In this set, T is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 13

microelectroniccounterproposalallotetraploidsallotetraploidyautotetraploidsautotetraploidycounterresponsediastereoisomerdocumentationalinterelectrodesinterelectronicmicroelectrodesphotoelectronic

About this list

Words
13 (1 common words)
Common example
microelectronic
Rare example
photoelectronic
Doubled letters
3
Ending in S
4
Most frequent letter
T (13)

Questions

How many 15-letter words matching _____e_____o___ are there?

13. 1 of them are common words.

What is a common example?

MICROELECTRONIC is among the common words in this set.