15-Letter Words Matching ____N__E_______

There are 12 15-letter words that match ____N__E_______. 3 are common words, such as IMMUNODEFICIENT and INFINITESIMALLY. A rarer one is TELANGIECTASIAS. In this set, I is the most frequent open letter (11 words). 5 words contain a doubled letter.

Full list 12

immunodeficientinfinitesimallyparentheticallyunmanageabilityadrenalectomiesechinodermatousnoninflectionalnonuniversitiesorganomercurialorganometallicssaponaceousnesstelangiectasias

About this list

Words
12 (3 common words)
Common example
immunodeficient
Rare example
telangiectasias
Doubled letters
5
Ending in S
6
Most frequent letter
I (11)

Questions

How many 15-letter words matching ____n__e_______ are there?

12. 3 of them are common words.

What is a common example?

IMMUNODEFICIENT is among the common words in this set.