12-Letter Words Matching ________RO__

There are 75 12-letter words that match ________RO__. 19 are common words, such as AMBIDEXTROUS and BREASTSTROKE. A rarer one is VIRULIFEROUS. In this set, E is the most frequent open letter (64 words). 10 words contain a doubled letter.

Full list 75

Common words

ambidextrousbreaststrokeburglarproofcantankerouscholesterolshyperthyroidmasterstrokenoncancerousobstreperousovergenerousphilanthropyprecancerous
ambidextrousbreaststrokeburglarproofcantankerouscholesterolshyperthyroidmasterstrokenoncancerousobstreperousovergenerousphilanthropyprecancerouspreposterousprogesteroneshatterprooftestosteronetetrahedronsweatherproofwheelbarrowsandrosteroneantineutronsarchenteronsconchiferouscounterprooffructiferoushemispheroidheteromerousicosahedronslaticiferousluminiferousmacropterousmillimicronsmultiflorousorthopterousoverdesirouspentahedronspetaliferousplumbiferousresiniferoussoporiferousstereochromestereochromystilbestrolssudoriferoussynchrotronstetrapterousunchivalrousxanthochroidyellowthroatadrenochromeamentiferouschylomicronscoleopterousdiatessaronsdimercaprolsfluorochromeheliolatrousinterneuronsmicrosporousneurofibromaneuropterousnonclassroomnonglamorousorthopteroidovercontrolsphytosterolssalutiferousseleniferoussemilustrousseminiferousslaughteroustetrapyrroletitaniferousunprosperousviruliferous

About this list

Words
75 (19 common words)
Common example
ambidextrous
Rare example
viruliferous
Doubled letters
10
Ending in S
53
Most frequent letter
E (64)

Questions

How many 12-letter words matching ________ro__ are there?

75. 19 of them are common words.

What is a common example?

AMBIDEXTROUS is among the common words in this set.