15-Letter Words Matching _____R____C____

There are 21 15-letter words that match _____R____C____. 4 are common words, such as DEMOGRAPHICALLY and TELEGRAPHICALLY. A rarer one is RETROREFLECTORS. In this set, L is the most frequent open letter (20 words). 14 words contain a doubled letter.

Full list 21

demographicallytelegraphicallytopographicallytypographicallyautographicallycerebrovascularelectronarcosishexylresorcinolholographicallyvoyeuristicallyxerographicallyautotrophicallydiastrophicallydithyrambicallygeostrophicallyideographicallylogographicallynoncertificatedretroreflectionretroreflectiveretroreflectors

About this list

Words
21 (4 common words)
Common example
demographically
Rare example
retroreflectors
Doubled letters
14
Ending in S
2
Most frequent letter
L (20)

Questions

How many 15-letter words matching _____r____c____ are there?

21. 4 of them are common words.

What is a common example?

DEMOGRAPHICALLY is among the common words in this set.