11-Letter Words Matching ____O___A__

There are 80 11-letter words that match ____O___A__. 24 are common words, such as AGGLOMERATE and ANTIOXIDANT. A rarer one is TREPONEMATA. In this set, R is the most frequent open letter (52 words). 14 words contain a doubled letter.

Full list 80

Common words

agglomerateantioxidantappropriateapproximatecommonplacecommonwealsconcomitantconsolidatecorroboratediamondbackexpropriatehaemorrhage
agglomerateantioxidantappropriateapproximatecommonplacecommonwealsconcomitantconsolidatecorroboratediamondbackexpropriatehaemorrhagehippopotamihydrogenatemicromanageperiodicalspredominantpredominatepronominalsratiocinaterebroadcastreinoculatesacroiliacssubcontractbenzofuranscarboxylasecarboxylatecirrostraticorroborantcyclohexanedragonheadshebdomadaryhydrolyzateimpropriatemeprobamatemuttonheadsnondominantpaleobotanyprecontractpsilomelaneradiogalaxyshadowgraphsubdominantantiozonantbiologicalscatholicatecladoceranscolloquialsdiphosphateethnobotanygallowglassglucokinaseglucosidaseglycosidaseglycosylatehomoousianshydrogenasehydrolysatehydroxylasehydroxylatelabiovelarsmicrofaradsnimbostratinitrofuransnitrogenasenonconstantnoncontractnoncoveragenonmonetaryoutpopulateoveroperatephotomosaicphotomuralsprenominateprotogalaxyprotohumansprotonemataprotonotarysubcontrarytreponemata

About this list

Words
80 (24 common words)
Common example
agglomerate
Rare example
treponemata
Doubled letters
14
Ending in S
17
Most frequent letter
R (52)

Questions

How many 11-letter words matching ____o___a__ are there?

80. 24 of them are common words.

What is a common example?

AGGLOMERATE is among the common words in this set.