13-Letter Words Matching _______O_O___

There are 34 13-letter words that match _______O_O___. 5 are common words, such as BACTERIOLOGIC and PHARMACOPOEIA. A rarer one is SPERMATOZOANS. In this set, I is the most frequent open letter (28 words). 2 words contain a doubled letter.

Full list 34

Common words

bacteriologicpharmacopoeiaradioisotopessocioeconomicstaphylococcianthropologicanthroposophychondriosomesdepressomotorgynandromorphmacroeconomicmicroeconomic
bacteriologicpharmacopoeiaradioisotopessocioeconomicstaphylococcianthropologicanthroposophychondriosomesdepressomotorgynandromorphmacroeconomicmicroeconomicpaleontologicpharmacologicspermatozoidsanthropomorphcytotaxonomicepidemiologicgeohydrologicmicrobiologicpaleobiologicpaleoecologicparasitologicpathognomonicphotobiologicphotogeologicpolyribosomalpolyribosomesprednisolonespregnenolonesradiobiologicradioisotopicspermatogoniaspermatozoans

About this list

Words
34 (5 common words)
Common example
bacteriologic
Rare example
spermatozoans
Doubled letters
2
Ending in S
7
Most frequent letter
I (28)

Questions

How many 13-letter words matching _______o_o___ are there?

34. 5 of them are common words.

What is a common example?

BACTERIOLOGIC is among the common words in this set.