15-Letter Words Matching __R____O_______

There are 22 15-letter words that match __R____O_______. 6 are common words, such as CHRONOLOGICALLY and CIRCUMLOCUTIONS. A rarer one is STRATOVOLCANOES. In this set, A is the most frequent open letter (18 words). 5 words contain a doubled letter.

Full list 22

chronologicallycircumlocutionscorrespondencescorrespondinglyparthenogenesesparthenogenesisagranulocytosesagranulocytosischromatographiccircumvolutionsmercaptopurinesmorphologicallyparthenogeneticphrenologicallychromatographedchromatographerparamyxovirusesparasitologicalparasitologistsparthenocarpiesphrasemongeringstratovolcanoes

About this list

Words
22 (6 common words)
Common example
chronologically
Rare example
stratovolcanoes
Doubled letters
5
Ending in S
12
Most frequent letter
A (18)

Questions

How many 15-letter words matching __r____o_______ are there?

22. 6 of them are common words.

What is a common example?

CHRONOLOGICALLY is among the common words in this set.