13-Letter Words Matching _____O_____R_

There are 21 13-letter words that match _____O_____R_. 5 are common words, such as BRONCOBUSTERS and EXTRAORDINARY. A rarer one is STEREOISOMERS. In this set, E is the most frequent open letter (19 words). 3 words contain a doubled letter.

Full list 21

broncobustersextraordinarygenitourinaryminicomputerstelecommutersanthropolatryanthropometrycuckooflowerspsychosurgerysomatosensoryagroforestersanticonsumerschromocenterscontrovertersexteroceptorsinteroceptorspreprocessorspsychohistoryrhabdomancerssoliloquizersstereoisomers

About this list

Words
21 (5 common words)
Common example
broncobusters
Rare example
stereoisomers
Doubled letters
3
Ending in S
14
Most frequent letter
E (19)

Questions

How many 13-letter words matching _____o_____r_ are there?

21. 5 of them are common words.

What is a common example?

BRONCOBUSTERS is among the common words in this set.