15-Letter Words Matching ____N__O_______

There are 18 15-letter words that match ____N__O_______. 5 are common words, such as CHRONOLOGICALLY and PLAINCLOTHESMAN. A rarer one is PALYNOLOGICALLY. In this set, I is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 18

chronologicallyplainclothesmanplainclothesmentechnologicallyuncontroversialachondroplasiasagranulocytosesagranulocytosisimmunologicallymelancholicallyphrenologicallyplainspokennessachondroplasticgynandromorphicimmunocompetentimmunomodulatornonuniformitiespalynologically

About this list

Words
18 (5 common words)
Common example
chronologically
Rare example
palynologically
Doubled letters
9
Ending in S
5
Most frequent letter
I (17)

Questions

How many 15-letter words matching ____n__o_______ are there?

18. 5 of them are common words.

What is a common example?

CHRONOLOGICALLY is among the common words in this set.