12-Letter Words Matching ______O____N

There are 21 12-letter words that match ______O____N. 9 are common words, such as ANTIABORTION and ARCHDIOCESAN. A rarer one is TRICHLORPHON. 2 words contain a doubled letter.

Full list 21

antiabortionarchdiocesanbackwoodsmanbackwoodsmencosmopolitanlongshoremanlongshoremenmetropolitanstreptomycinerythromycinfibrinolysinhaematoxylonprolegomenonantiglobulindibenzofuranoleandomycinpancreozyminpostabortionstreptolysintetrodotoxintrichlorphon

About this list

Words
21 (9 common words)
Common example
antiabortion
Rare example
trichlorphon
Doubled letters
2
Ending in S
0

Questions

How many 12-letter words matching ______o____n are there?

21. 9 of them are common words.

What is a common example?

ANTIABORTION is among the common words in this set.