13-Letter Words Matching ____O____A___

There are 52 13-letter words that match ____O____A___. 15 are common words, such as CARBOHYDRATES and HYDROCEPHALUS. A rarer one is TROPOCOLLAGEN. In this set, E is the most frequent open letter (45 words). 8 words contain a doubled letter.

Full list 52

Common words

carbohydrateshydrocephalusmicrowaveablenoncombatantsnoncompliancephotoengravedphotoengraverphotoengravespreponderancepreponderatedpreponderatespronounceable
carbohydrateshydrocephalusmicrowaveablenoncombatantsnoncompliancephotoengravedphotoengraverphotoengravespreponderancepreponderatedpreponderatespronounceablerephotographsthoroughfaresuncoordinatedaphrodisiacalconsonantallycyclopropanesdipsomaniacalhydrocephalicmacrocephalicmicrocephalicorthocephalicphotomontagesproconsulatesthoroughpacedunemotionallyunproblematicbipropellantscarbohydraseshydrothoraceshydrothoraxesleptocephalusmethotrexatesmicroclimatesmicroclimaticmicrofilmablenitromethanesnoncomparablenonconjugatednoncooperatororthoepicallyoxaloacetatespantothenatesperiodontallyphotovoltaicspreformulatedpreformulatespreponderancyprosopographyrhodomontadestropocollagen

About this list

Words
52 (15 common words)
Common example
carbohydrates
Rare example
tropocollagen
Doubled letters
8
Ending in S
23
Most frequent letter
E (45)

Questions

How many 13-letter words matching ____o____a___ are there?

52. 15 of them are common words.

What is a common example?

CARBOHYDRATES is among the common words in this set.