15-Letter Words Matching ____C_R________

There are 12 15-letter words that match ____C_R________. 3 are common words, such as INDOCTRINATIONS and REINCORPORATING. A rarer one is OVERCORRECTIONS. In this set, O is the most frequent open letter (12 words). 3 words contain a doubled letter.

Full list 12

indoctrinationsreincorporatingreincorporationautocorrelationanticarcinogensanticorruptionsechocardiogramshemochromatoseshemochromatosismegacorporationmonochromatismsovercorrections

About this list

Words
12 (3 common words)
Common example
indoctrinations
Rare example
overcorrections
Doubled letters
3
Ending in S
8
Most frequent letter
O (12)

Questions

How many 15-letter words matching ____c_r________ are there?

12. 3 of them are common words.

What is a common example?

INDOCTRINATIONS is among the common words in this set.