11-Letter Words Starting With O and Ending With M

Explore 46 matching words, including obcordiform, objectivism, observandum, obturaculum, octacalcium.

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All 46 Matching Words

obcordiformInversely cordiform; obcordate.objectivismThe state of being objective; objectivity.observandumA thing to be observed.obturaculumA plug of connective tissue separating the hemocoels of the head and thorax of some liceoctacalcium(inorganic chemistry, in combination) Eight calcium atoms or ions in a compoundoctarhodium(chemistry, in combination) Eight rhodium atoms or cations in a molecule (Rh₈)octocalciumMisspelling of octacalcium.oenotourismAlternative form of enotourism (“wine tourism”).officialdomThe people elected to government or employed in the civil service.officialismThe rigid, perfunctory and literal adherence to official duties and regulationsoligarchismThe principles or spirit of an oligarchy.oligopolismAny doctrine supporting an oligopoly.omphalodiumAlternative form of omphalode.oncotropismThe condition of being oncotropicoophoridium(botany, obsolete) The macrosporangium or case for the larger kind of spore in heterosporous flowerless plants.ophidiariumA place for keeping snakes.ophidiiform(zoology) Any ray-finned fish of the order OphidiiformesopobalsamumSynonym of opobalsam.opportunismThe practice of taking advantage of any situations or people to achieve an end, often with no regard for principles or consequences.orchidariumAn orchid garden.organistrum(music) Any early form of hurdy-gurdy.orichalchumAlternative spelling of orichalcum.orientalism(countable) An Eastern word, expression, or custom.originalismThe view that a text should be interpreted according to the intent of its original authors.orphanarium(rare, chiefly humorous) An orphanage.orthodoxism(religion) Strict orthodoxy.orthogoniumright-angled triangleoscillogramA record produced by an oscillograph or oscilloscope.osmoconform(biology, of an organism) To maintain its internal salinity such that it is always equal to the surrounding seawaterostensoriumAn ostensory, or monstrance.ostracoderm(zoology) Any of the armored jawless fishes of the Paleozoic.outsiderdomThe state or condition of being an outsider.outsiderismThe status or behaviour of outsiders.overconform(intransitive) To conform to a greater extent than necessary or desirable.overfreedomThe quality of being excessively free.overkingdomA unit composed of several kingdoms and presided over by an overking; an empire.overperformTo perform better than expectedoverprogram(ambitransitive) To include too much in a program, scheme or schedule.overrealismExcessive realism.overseerismAn arrangement in which one person or organization acts as an overseer over another.overstratumA stratum or layer lying above another.overtourismExcessive tourism.overuniformToo uniform; not sufficiently varied.oxazolinium(organic chemistry) Any cation derived from an oxazoleoxoammonium(organic chemistry) Any of a class of cations of general formula RR^'N⁺=Ooxovanadium(inorganic chemistry, especially in combination) The cation VO²⁺