13-Letter Words Matching _____OP______

There are 76 13-letter words that match _____OP______. 10 are common words, such as DEVELOPMENTAL and DISPROPORTION. A rarer one is TRICHOPTERANS. In this set, T is the most frequent open letter (61 words). 3 words contain a doubled letter.

Full list 76

Common words

developmentaldisproportionhelicopteringmegalopolisesoverpopulatedoverpopulatespsychopathiesschizophreniaschizophrenicthermoplasticanthropogenicanthropolatry
developmentaldisproportionhelicopteringmegalopolisesoverpopulatedoverpopulatespsychopathiesschizophreniaschizophrenicthermoplasticanthropogenicanthropolatryanthropologicanthropometryanthropopathyanthropophagianthropophagyanthroposophyarsenopyriteschalcopyriteschromoproteinentomophagousentomophiloushematopoiesisheteropteroushymenopteranshymenopterousinteroperableinteroperateslepidopteranslepidopteristlepidopterousmorphophonemenaturopathiesnucleoproteinpsychopathistpsychophysicsscleroproteinailurophobiasallelopathiesanthropomorpharthropathiesbibliopegistsbibliophiliesbibliophilismbibliopolistsbutyrophenonecardiopathiesceruloplasminchloropicrinschloroplasticenteropathiesentomophilieseosinophiliasgeotropicallyhematophagoushematopoieseshematopoieticheterophonieshymenopteronsmegalopolitanmycetophagousnephropathiesnoncooperatornucleoplasmiconychophoranspogonophoranspsychopathicsretinopathiesschizophrenessomatopleuresstereophoniesstereopticonstechnophobiasthermophiloustrichopterans

About this list

Words
76 (10 common words)
Common example
developmental
Rare example
trichopterans
Doubled letters
3
Ending in S
44
Most frequent letter
T (61)

Questions

How many 13-letter words matching _____op______ are there?

76. 10 of them are common words.

What is a common example?

DEVELOPMENTAL is among the common words in this set.