13-Letter Words Matching N_________R__

There are 12 13-letter words that match N_________R__. 5 are common words, such as NITROGLYCERIN and NOMENCLATURES. A rarer one is NONSTRUCTURED. In this set, O is the most frequent open letter (12 words). 0 words contain a doubled letter.

Full list 12

nitroglycerinnomenclaturesnonstructuralnortheasterlynorthwesterlynitrobacterianomenclaturalnonparametricnephelometricnonbehavioralnonequilibrianonstructured

About this list

Words
12 (5 common words)
Common example
nitroglycerin
Rare example
nonstructured
Doubled letters
0
Ending in S
1
Most frequent letter
O (12)

Questions

How many 13-letter words matching n_________r__ are there?

12. 5 of them are common words.

What is a common example?

NITROGLYCERIN is among the common words in this set.