15-letter words containing p, r, o, y
- pyrophotography — the production of pyrophotographs
- pyrotechnically — in a pyrotechnical manner
- pyrrhic victory — a victory or goal achieved at too great a cost.
- query expansion — (information science) Adding search terms to a user's search. Query expansion is the process of a search engine adding search terms to a user's weighted search. The intent is to improve precision and/or recall. The additional terms may be taken from a thesaurus. For example a search for "car" may be expanded to: car cars auto autos automobile automobiles. The additional terms may also be taken from documents that the user has specified as being relevant; this is the basis for the "more like this" feature of some search engines. The extra terms can have positive or negative weights.
- radioautography — autoradiography.
- radiotelegraphy — the constructing or operating of radiotelegraphs.
- reproducibility — to make a copy, representation, duplicate, or close imitation of: to reproduce a picture.
- retrospectively — with contemplation of past situations, events, etc.: You should examine your relationship retrospectively.
- rhyming couplet — a pair of lines in poetry that rhyme and usually have the same rhythm
- roentgenography — roentgenogram.
- ross dependency — a territory in Antarctica, including Ross Island, the coasts along the Ross Sea, and adjacent islands: a dependency of New Zealand. About 175,000 sq. mi. (453,250 sq. km).
- royal poinciana — a tree, Delonix regia, of the legume family, native to Madagascar, having showy clusters of brilliant scarlet flowers and long, flat, woody pods.
- saprophytically — any organism that lives on dead organic matter, as certain fungi and bacteria.
- secondary group — a group of people with whom one's contacts are detached and impersonal.
- security police — a police force responsible for maintaining order at a specific locale or under specific circumstances, as at an airport or factory.
- semipornography — partial pornography; material that is almost pornographic
- sepoy rebellion — the Indian Mutiny of 1857–58
- septentrionally — northwards; in the direction of the north
- serendipitously — come upon or found by accident; fortuitous: serendipitous scientific discoveries.
- simple majority — less than half of the total votes cast but more than the minimum required to win, as when there are more than two candidates or choices.
- sinorespiratory — of, relating to, or affecting the paranasal sinuses and the respiratory tract.
- slumpflationary — of or relating to slumpflation
- soapbox oratory — public speaking typical of soapbox orators
- socialist party — a U.S. political party advocating socialism, formed about 1900 chiefly by former members of the Social Democratic Party and the Socialist Labor Party.
- somatic therapy — any of a group of treatments presumed to act on biological factors leading to mental illness.
- spill your guts — If someone spills their guts, they tell you everything about something secret or private.
- spiny cocklebur — a cocklebur, Xanthium spinosum, introduced into North America from Europe.
- staphylorrhaphy — repair of a cleft palate by means of staphyloplasty and suturing
- stereotypically — in a stereotypical manner
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- styloid process — a long, spinelike process of a bone, especially the projection from the base of the temporal bone.
- subperiosteally — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- subreptitiously — in a subreptitious manner
- sully-prudhomme — René François Armand [ruh-ney frahn-swa ar-mahn] /rəˈneɪ frɑ̃ˈswa arˈmɑ̃/ (Show IPA), 1839–1907, French poet: Nobel prize 1901.
- sulphinpyrazone — a uricosuric drug with molecular formula C23H20N2O3S, used in the treatment of chronic gout
- superheterodyne — denoting, pertaining to, or using a method of processing received radio or video signals in which an incoming modulated wave is changed by the heterodyne process into a lower-frequency wave and then subjected to amplification and subsequent detection.
- surreptitiously — obtained, done, made, etc., by stealth; secret or unauthorized; clandestine: a surreptitious glance.
- symmetric group — the group of all permutations of a finite set.
- symphony writer — a composer of an extended large-scale orchestral composition, usually with several movements, at least one of which is in sonata form
- synectics group — a group of people of varied background that meets to attempt creative solutions of problems through the unrestricted exercise of imagination and the correlation of disparate elements.
- system operator — a person who maintains a computer system or network, especially one who operates a computer bulletin board.
- telephotography — photography of distant objects, using a telephoto lens.
- thalassotherapy — the use of sea water and marine products as a therapeutic treatment
- theatre company — an organization that produces theatrical performances
- theory of types — a theory advanced by Bertrand Russell to avoid the liar paradox, Russell's paradox, etc, in which a class of expressions or of the entities they represent can all enter into the same syntactic relations
- thermogeography — the study of the geographical variation and distribution of temperature.
- thraco-phrygian — a hypothetical branch of Indo-European implying a special genetic affinity between the meagerly attested Thracian and Phrygian languages.
- threepennyworth — an amount having the value or price of threepence
- to jump for joy — If you say that someone is jumping for joy, you mean that they are very pleased or happy about something.
- to part company — If two or more people part company, they go in different directions after going in the same direction together.