13-Letter Words Matching ____N_____A__

There are 22 13-letter words that match ____N_____A__. 7 are common words, such as BICENTENNIALS and DECONTAMINATE. A rarer one is POGONOPHORANS. 2 words contain a doubled letter.

Full list 22

bicentennialsdecontaminatehumanitariansinconsideratemisunderstandprognosticaterecontaminateactinotherapydecontaminanthymenopteransimmunotherapymelancholiacsnonintoxicantorganotherapyreconcentratereconsolidatechronotherapydeconcentratedibenzofuransdisintoxicatenonuniversalspogonophorans

About this list

Words
22 (7 common words)
Common example
bicentennials
Rare example
pogonophorans
Doubled letters
2
Ending in S
7

Questions

How many 13-letter words matching ____n_____a__ are there?

22. 7 of them are common words.

What is a common example?

BICENTENNIALS is among the common words in this set.