12-Letter Words Containing ODO

There are 23 12-letter words that contain ODO. 8 are common words, such as HETERODOXIES and ORTHODONTIAS. A rarer one is UNORTHODOXLY. 4 words contain a doubled letter.

Full list 23

heterodoxiesorthodontiasorthodonticsorthodontistperiodonticsperiodontistpetrodollarsrhododendronaerodoneticscyprinodontsdiplodocusesendodontistsmalodorouslyodontologistorthodonturerodomontadesneoorthodoxyodontoblastspodophyllinspodophyllumsrhodomontadetetrodotoxinunorthodoxly

About this list

Words
23 (8 common words)
Common example
heterodoxies
Rare example
unorthodoxly
Doubled letters
4
Ending in S
13

Questions

How many 12-letter words containing odo are there?

23. 8 of them are common words.

What is a common example?

HETERODOXIES is among the common words in this set.