15-Letter Words Matching __________O_I__

There are 87 15-letter words that match __________O_I__. 23 are common words, such as ANTIABORTIONIST and BIOTECHNOLOGIES. A rarer one is THYROIDECTOMIES. In this set, S is the most frequent open letter (79 words). 19 words contain a doubled letter.

Full list 87

Common words

antiabortionistbiotechnologiesburglarproofingclaustrophobiasconservationismconservationistconstructionistdecommissioningendocrinologiesendocrinologistinsurrectionistinterrogatories
antiabortionistbiotechnologiesburglarproofingclaustrophobiasconservationismconservationistconstructionistdecommissioningendocrinologiesendocrinologistinsurrectionistinterrogatoriesinterventionisminterventionistophthalmologiesophthalmologistphantasmagoriaspreconditioningpreservationistrecommissioningtonsillectomiestroubleshootingweatherproofingadenoidectomiesassimilationistbiotechnologistcontradictorilycountermelodiesgeochronologistgeomorphologiesimprovisatorialinterrogatorilymastoidectomiesmetempsychosistoligonucleotidepneumonectomiespresentationismpreservationismprostatectomiespsychobiologistpsychoneuroticsresurrectionismresurrectionistsalpingectomiessuperpatriotismthromboembolismvespertilionineadrenalectomiesassimilationismchemotaxonomieschemotaxonomistchronobiologieschronobiologistcolonizationistcomputerphobiascontradictoriescryptozoologiescryptozoologistecophysiologieselectrodepositsemancipationistepizootiologiesgeochronologiesgeomorphologisthelminthologieshypercatabolismhypermetabolisminternucleotidemontmorillonitenonprofessorialoptoelectronicspharmacognosiesphenomenologiesphenomenologistpreformationistpsychobiologiespsychohistorianpsychohistoriesroentgenologiesroentgenologistsedimentologiessedimentologistsigmoidoscopiessuccinylcholinesympathectomiesthermoperiodismthyroidectomies

About this list

Words
87 (23 common words)
Common example
antiabortionist
Rare example
thyroidectomies
Doubled letters
19
Ending in S
36
Most frequent letter
S (79)

Questions

How many 15-letter words matching __________o_i__ are there?

87. 23 of them are common words.

What is a common example?

ANTIABORTIONIST is among the common words in this set.