13-Letter Words Matching ____O_____O__

There are 79 13-letter words that match ____O_____O__. 29 are common words, such as ANCHORPERSONS and APPROPRIATORS. A rarer one is THYROIDECTOMY. In this set, S is the most frequent open letter (69 words). 15 words contain a doubled letter.

Full list 79

Common words

anchorpersonsappropriatorscarboniferouschiropractorsconformationsconsolidatorscorroboratorscorroboratorydespoliationsdiscontinuousdissociationsexploitations
anchorpersonsappropriatorscarboniferouschiropractorsconformationsconsolidatorscorroboratorscorroboratorydespoliationsdiscontinuousdissociationsexploitationsexpropriatorsextroversionsintroductionsintroversionsmalformationsneurosurgeonsnonconductorsnoncontagiousnoncontinuousphilodendronsprecognitionspreconditionsprimogenitorsprolongationsreproductionsrhododendronsschoolfellowsadenoidectomybignoniaceousgeomorphologygymnospermousimprovisatoryintrojectionsintromissionsleptophyllouslissotrichousmagnoliaceousmastoidectomynoncontiguousnonhomologousorthognathousphenomenologyphysoclistousratiocinatorsretroflexionsretroversionsrhizomorphousstenopetalousstenophyllousangiospermouschemotaxonomyconsociationscoproductionscoproprietorscyclohexanonedispossessorsepizootiologyferrosiliconsimprovisatoreimprovisatoriimprovisatorslithotriptorsmethoxychlorsmetronidazolemicrophyllousneuroblastomanoncollectorsnonmonogamousphycomycetousprecopulatorypreformationsretrocessionsretrodictionssigmoidoscopystoloniferoussubcoriaceousthyroidectomy

About this list

Words
79 (29 common words)
Common example
anchorpersons
Rare example
thyroidectomy
Doubled letters
15
Ending in S
63
Most frequent letter
S (69)

Questions

How many 13-letter words matching ____o_____o__ are there?

79. 29 of them are common words.

What is a common example?

ANCHORPERSONS is among the common words in this set.