15-Letter Words Matching __C____A_______

There are 13 15-letter words that match __C____A_______. 3 are common words, such as BACKSCRATCHINGS and RECRYSTALLIZING. A rarer one is UNCLIMBABLENESS. In this set, I is the most frequent open letter (11 words). 6 words contain a doubled letter.

Full list 13

backscratchingsrecrystallizinguncomplaininglyaccountablenessasclepiadaceousecclesiasticismaccountantshipsarchaebacteriummicroanalyticalmicroanatomicalpictorialnessesrechromatographunclimbableness

About this list

Words
13 (3 common words)
Common example
backscratchings
Rare example
unclimbableness
Doubled letters
6
Ending in S
6
Most frequent letter
I (11)

Questions

How many 15-letter words matching __c____a_______ are there?

13. 3 of them are common words.

What is a common example?

BACKSCRATCHINGS is among the common words in this set.