16-Letter Words Starting With O and Ending With S

Explore 57 matching words, including obdiplostemonous, obhaplostemonous, objectifications, obstreperousness, obstropulousness.

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All 57 Matching Words

obdiplostemonous(botany, of flowers) Having two sets of stamens in alternating whorls, with the outer whorl opposite the petals.obhaplostemonous(botany) Having a single series of stamens equal in number to petals, but opposite with them.objectificationsplural of objectificationobstreperousnessThe quality of being obstreperous.obstropulousness(UK, obsolete, slang) The quality of being obstropulous.odontopediatricsAlternative form of odontopaediatrics.oligodendrocytesplural of oligodendrocyteoligonucleotidesplural of oligonucleotideoligosaccharidesplural of oligosaccharideoligosporogenousThat produces several sporesomphaloarteritisarteritis of the umbilicusomphalophlebitis(pathology) inflammation of an umbilical veinophioglossaceous(botany) Belonging to the family Ophioglossaceae of ferns.ophthalmomycosis(medicine) An eye disease caused by a fungus.ophthalmomyiasis(medicine, pathology) Myiasis of the eye.ophthalmoparesis(medicine) A partial or complete paralysis of the extraocular muscles which are responsible for eye movements.ophthalmoscopiesplural of ophthalmoscopyopinionativenessQuality of being opinionative.oppositipetalous(botany) Facing a petal.oppositisepalous(botany) Facing a sepal.opsonophagocytisMisspelling of opsonophagocytosis.optomechatronicsThe integration of optical components and technology into mechatronic systems.organellogenesisThe creation and development of organellesorganophosphorus(organic chemistry) describing any of a series of derivatives of phosphorus that have at least one alkyl or aryl group, especially one containing at least one carbon-phosphorus bondornamentlessnessAbsence of ornaments.orthophasmavirusAny RNA virus of the genus OrthophasmavirusorthopneumovirusAny virus of the genus Orthopneumovirus.orthorubulavirusAny virus of the genus Orthorubulavirus.orthotrichaceous(botany, relational) Of or relating to the Orthotrichaceae.ostentatiousnessThe property or characteristic of being ostentatious.osteocytogenesisThe creation and development of osteocytesosteohydatidosisA type of hydatidosis involving bone.osteoligamentous(anatomy) Relating to bone and ligamentosteoperiostitisinflammation of a bone and its periosteumosteopsathyrosisFragility of the bones, or fragilitas ossium; a condition of softening of the bones, frequently accompanied by spontaneous fractures.osteosarcomatousRelating to osteosarcoma.otherworldlinessThe quality of being otherworldly.overburdenednessThe state or condition of being overburdened.overcarelessnessExcessive carelessness.overcautiousnessExcessive cautiousness.overcompletenessThe condition of being overcompleteovercriticalnessThe quality of being overcritical.overeffusivenessThe quality of being overeffusive.overexplicitnessThe quality of being overexplicit.overfriendlinessThe quality of being too friendlyoverindebtednessThe quality of being too deeply in debt.overnumerousness(rare) The quality or condition of being too numerous.overpopulousnessThe quality of being overpopulous.overpowerfulnessThe quality of being overpowerful.overpoweringnessThe quality of being overpowering.overpresumptuousExcessively presumptuous.overreachingnessThe quality of being overreaching.overspaciousnessExcessive spaciousness.overstudiousnessExcessive studiousness.overtimorousnessExcessive timorousness.overweightednessQuality of being overweighted.overwhelmingnessThe property of being overwhelming.