15-Letter Words Matching ________ET_____

There are 16 15-letter words that match ________ET_____. 2 are common words, such as METHAMPHETAMINE and TRIGONOMETRICAL. A rarer one is TRIHALOMETHANES. In this set, I is the most frequent open letter (16 words). 1 words contain a doubled letter.

Full list 16

methamphetaminetrigonometricalcounterpetitiongalvanometricalinterpenetratedinterpenetratesisoperimetricallactovegetarianovercompetetivetribromoethanolanticompetitivedichloroethanesmicrogametocyteomnicompetencespersnicketinesstrihalomethanes

About this list

Words
16 (2 common words)
Common example
methamphetamine
Rare example
trihalomethanes
Doubled letters
1
Ending in S
5
Most frequent letter
I (16)

Questions

How many 15-letter words matching ________et_____ are there?

16. 2 of them are common words.

What is a common example?

METHAMPHETAMINE is among the common words in this set.