15-Letter Words Matching __________O_A__

There are 17 15-letter words that match __________O_A__. 3 are common words, such as CARDIOPULMONARY and CONSTITUTIONALS. A rarer one is UNREVOLUTIONARY. 3 words contain a doubled letter.

Full list 17

cardiopulmonaryconstitutionalsnoninflationaryarchiepiscopacyarchiepiscopateinsurrectionarysesquicarbonateunproportionatedisinflationarylymphosarcomataneuroblastomatanoncontemporarypseudocoelomatesubstitutionaryuncompassionateunprofessionalsunrevolutionary

About this list

Words
17 (3 common words)
Common example
cardiopulmonary
Rare example
unrevolutionary
Doubled letters
3
Ending in S
2

Questions

How many 15-letter words matching __________o_a__ are there?

17. 3 of them are common words.

What is a common example?

CARDIOPULMONARY is among the common words in this set.