15-Letter Words Starting With O and Ending With S

Explore 88 matching words, including obedientialness, obstructionists, obstructiveness, octocentenaries, odontobothritis.

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All 88 Matching Words

obedientialnessThe quality of being obediential.obstructionistsplural of obstructionistobstructivenessThe characteristic of being obstructive.octocentenariesplural of octocentenaryodontobothritis(obsolete, pathology) alveolitis of the jawodoriferousnessThe quality of being odoriferous.oesophagoscopesplural of oesophagoscopeoffencelessnessAbsence of offence.offenselessnessAbsence of offense.oligohydramnios(pathology) A deficit of amniotic fluid in the amniotic sac, causing distinctive deformations of the foetusoligometastasis(medicine, pathology) A state of limited metastasis, especially of cancer, with several (but not many) metastatic sites.omnifariousnessQuality of being omnifarious.onchocerchiasisAlternative form of onchocerciasis.onchodermatitis(pathology) A form of dermatitis caused by filarial worms of the genus Onchocercaonychocryptosis(medicine) ingrown toenailonychogryphosis(dermatology) A hypertrophy or excess growth of the nails.openheartednessAlternative form of open-heartedness.openmouthednessThe state of having the mouth open, especially in astonishment.ophthalmoscopesplural of ophthalmoscopeopinionatednessThe state or condition of being opinionated.opinionlessnessAbsence of opinions.opisthoglyphous(of a snake) Whose teeth include an enlarged pair at the back of the maxillae which normally angle backwards and are grooved to channel venom into the puncture.opisthognathous(zoology) Having retreating jaws or teeth.opisthorchiasisA parasitic disease caused by trematodes in the genus Opisthorchis.opportunitylessDevoid of opportunity.oppositifolious(botany) Placed at the same node with a leaf, but separated from it by the whole diameter of the stem.opprobriousnessThe state or condition of being opprobrious.optoelectronics(physics) The branch of physics that deals with the interaction of light with electronic devices, or the production of light from such devicesoptospintronics(physics) The (study of the) interaction of light with spin polarization (spintronics)organocatalysis(organic chemistry) The use of small organic compounds as catalystsorganometallicsplural of organometallicoriginativenessThe quality of being originative.ornithorhynchusA platypus (genus Ornithorhynchus).orthoavulavirusAny avulavirus of the genus OrthoavulavirusorthobunyavirusAny of the genus Orthobunyavirus of bunyavirusesorthogeriatricsorthopaedics for geriatric patientsorthohantavirusAny member of the genus Orthohantavirus of single-stranded, enveloped, negative-sense RNA viruses.orthonairovirusAny virus of the genus Orthonairovirusorthophosphatesplural of orthophosphateorthoprosthesisAn orthodontic prosthesisorthoretrovirusAny retrovirus of the subfamily Orthoretrovirinae.orthotospovirusAny virus of the genus OrthotospovirusoscillationlessWithout oscillation.osmohomeostasishomeostasis of osmotic pressureosmoregulationsplural of osmoregulationosteochondritis(pathology) inflammation of a bone and its cartilageosteochondrosis(pathology) A family of orthopedic diseases of the joint that occur in children and in rapidly growing animals, characterized by interruption of the blood supply of a bone, necrosis, and regrowth.osteokinematicsThe relative movement of two bones that articulate at a common jointosteopoikilosisA benign sclerosing dysplasia of bone characterized by the presence of numerous enostoses in the skeleton.osteotendineousMisspelling of osteotendinous.outsiderishnessQuality of being outsiderish.outstandingnessThe quality or condition of being outstanding.overadventurousExcessively adventurous.overanxiousnessQuality of being overanxious.overarchingnessThe condition of being overarching.overbashfulnessExcessive bashfulness.overbearingnessQuality of being overbearing.overcarefulnessExcessive carefulness.overcleanlinessExcessive cleanliness.overcommitmentsplural of overcommitmentovercompensatesthird-person singular simple present indicative of overcompensateovercorrectionsplural of overcorrectionovercrowdednessThe property of being overcrowded.overcuriousnessExcessive curiousness.overearnestnessThe quality of being overearnest.overestimationsplural of overestimationoverfearfulnessExcessive fearfulness.overflowingnessQuality of being overflowing; exuberance.overforwardnessThe quality of being overforward.overgeneralizesthird-person singular simple present indicative of overgeneralizeoverindustriousAlternative form of over-industrious.overlearnednessExcessive learning; the quality or state of being overlearned.overnervousnessExcessive nervousness.overpopulationsplural of overpopulationoverpowerednessThe quality of being overpowered (subdued by superior force).overprecisenessThe quality of being overprecise.overproductionsplural of overproductionoverproportionsthird-person singular simple present indicative of overproportionoverpunctiliousExcessively punctilious.oversententiousExcessively sententious.overseriousnessQuality of being excessively serious.overspecializesthird-person singular simple present indicative of overspecializeoverthriftinessExcessive thriftiness.overweeningnessThe quality of being overweening.overwhelmednessThe quality of being overwhelmed.overwroughtnessThe property of being overwrought.overzealousnessThe quality of being too zealousoxidoreductasesplural of oxidoreductase