13-Letter Words Matching __R_____G____

There are 20 13-letter words that match __R_____G____. 8 are common words, such as CARDIOLOGISTS and CARPETBAGGERS. A rarer one is TERATOLOGISTS. 6 words contain a doubled letter.

Full list 20

cardiologistscarpetbaggerscarpetbaggingchronologicalchronologistsmorphologicalphrenologistssarcophagusesbirefringencecardiologicalcarpetbaggerychromatogramschromatographirrefrangiblephrenologicalteratologicalforgivingnesshornswogglingmorphologiststeratologists

About this list

Words
20 (8 common words)
Common example
cardiologists
Rare example
teratologists
Doubled letters
6
Ending in S
9

Questions

How many 13-letter words matching __r_____g____ are there?

20. 8 of them are common words.

What is a common example?

CARDIOLOGISTS is among the common words in this set.