13-Letter Words Matching ______A___O__

There are 19 13-letter words that match ______A___O__. 9 are common words, such as CARTILAGINOUS and LIQUEFACTIONS. A rarer one is ULTRACAUTIOUS. In this set, T is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 19

cartilaginousliquefactionsoverreactionspetrifactionspusillanimousputrefactionssatisfactionsstupefactionsvitrifactionscartilaginoidnumismatologypancreatotomysystematologythremmatologychemotaxonomyhypercautioussupercautioussuperpatriotsultracautious

About this list

Words
19 (9 common words)
Common example
cartilaginous
Rare example
ultracautious
Doubled letters
3
Ending in S
13
Most frequent letter
T (18)

Questions

How many 13-letter words matching ______a___o__ are there?

19. 9 of them are common words.

What is a common example?

CARTILAGINOUS is among the common words in this set.