15-letter words containing s, a, p, i, o
- montes riphaeus — a mountain range in the third quadrant of the visible face of the moon.
- morning prayers — early-morning act of religious worship
- morphosyntactic — involving both morphology and syntax.
- mules operation — the surgical removal of folds of skin in the breech of a sheep to reduce blowfly strike
- multiphase flow — Multiphase flow is a type of flow that involves more than one fluid, for example a liquid and a gas, or two liquids that do not mix.
- municipal bonds — a bond issued by a state, county, city, or town, or by a state authority or agency to finance projects.
- myelodysplastic — (medicine) Of, pertaining to, or showing evidence of myelodysplasia.
- napoleonic wars — French-led war in early 19th century
- nasopharyngitis — (medicine) An inflammation of the nasal passages, and of the upper pharynx.
- negro spiritual — a type of religious song originating among Black slaves in the American South
- neoarsphenamine — a derivative of arsenic formerly used in treating syphilis
- nephrolithiasis — (pathology) presence of calculi in kidneys.
- net.personality — Someone who has made a name for him or herself on Usenet, through either longevity or attention-getting posts, but doesn't meet the other requirements of net.godhood.
- neuroplasticity — the capacity of the nervous system to develop new neuronal connections: research on neuroplasticity of the brain after injury.
- neuropsychiatry — the branch of medicine dealing with diseases involving the mind and nervous system.
- nominal aphasia — aphasia in which the primary symptom is an inability to recall or recognize the names of objects
- non-a hepatitis — a form of viral hepatitis, not caused by the agents responsible for hepatitis A and hepatitis B, that is commonly transmitted by infected blood transfusions. The causative virus has been isolated
- non-disparaging — that disparages; tending to belittle or bring reproach upon: a disparaging remark.
- non-speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- non-suppurative — suppurating; characterized by suppuration.
- non-syncopation — Music. a shifting of the normal accent, usually by stressing the normally unaccented beats.
- noncatastrophic — of the nature of a catastrophe, or disastrous event; calamitous: a catastrophic failure of the dam.
- nondisciplinary — of, for, or constituting discipline; enforcing or administering discipline: disciplinary action.
- nonhospitalized — not hospitalized
- nonpartisanship — The quality of not being partisan, of remaining politically independent.
- nonprofessional — not a member of or trained in a specific profession.
- nonprofessorial — not professorial
- nonpsychiatrist — a person who is not a psychiatrist
- nonpsychoactive — Not psychoactive.
- nonsaponifiable — not capable of being saponified
- nonspecifically — in a nonspecific way
- occipitomastoid — (anatomy) Relating to, or connecting the occipital and mastoid bones.
- oil-based paint — any paint made with a drying oil or solvent such as linseed
- old age pension — An old age pension is a regular amount of money that people receive from the government when they have retired from work.
- open admissions — a policy of admitting applicants to an institution, especially a university, regardless of previous academic record or grades.
- opencast mining — mining by excavating from the surface
- opening batsman — a player who bats the first ball in cricket
- operationalised — Simple past tense and past participle of operationalise.
- operations room — a room from which all the operations of a military, police, or other disciplined activity are controlled
- ophthalmologist — a doctor of medicine specializing in ophthalmology.
- ophthalmoscopic — Of, pertaining to or using an ophthalmoscope.
- opinionatedness — The state or condition of being opinionated.
- opisthognathous — having receding jaws.
- oppositionality — Quality of being oppositional.
- optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical storage — optical disk drive
- opus anglicanum — fine embroidery, esp of church vestments, produced in England c.1200–c.1350; characterized by the rich materials used, esp silver gilt thread
- orthopsychiatry — an approach to psychiatry concerned with the study and treatment of behavioral disorders, especially of young people.
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- outside caliper — a caliper whose legs turn inward so that it can measure outside dimensions, as the diameter of a rod.