15-Letter Words Matching ________O_O____

There are 29 15-letter words that match ________O_O____. 5 are common words, such as BIOTECHNOLOGIES and ENDOCRINOLOGIES. A rarer one is SEDIMENTOLOGIST. 3 words contain a doubled letter.

Full list 29

Common words

biotechnologiesendocrinologiesendocrinologistophthalmologiesophthalmologistbiotechnologistgeochronologistgeomorphologiesnitrochloroformpsychobiologistautochthonouslychemotaxonomies
biotechnologiesendocrinologiesendocrinologistophthalmologiesophthalmologistbiotechnologistgeochronologistgeomorphologiesnitrochloroformpsychobiologistautochthonouslychemotaxonomieschemotaxonomistchronobiologieschronobiologistcryptozoologiescryptozoologistecophysiologiesepizootiologiesgeochronologiesgeomorphologisthelminthologiesphenomenologiesphenomenologistpsychobiologiesroentgenologiesroentgenologistsedimentologiessedimentologist

About this list

Words
29 (5 common words)
Common example
biotechnologies
Rare example
sedimentologist
Doubled letters
3
Ending in S
15

Questions

How many 15-letter words matching ________o_o____ are there?

29. 5 of them are common words.

What is a common example?

BIOTECHNOLOGIES is among the common words in this set.