15-letter words containing o, r, t, h, s, i
- pistachio green — a light or medium shade of yellow green.
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
- pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
- port washington — a town on NW Long Island, in SE New York.
- posthemorrhagic — occurring after a haemorrhage
- posthole digger — a tool or device for digging a posthole.
- postsynchronize — to add sound, such as dubbing, to a film or video after shooting is completed
- power macintosh — Power Mac
- probationership — the position of a probationer
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- property rights — a legal right to or in a particular property.
- protospatharius — (of the Byzantine empire) a high-ranking official in the imperial guard
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
- pseudonephritis — a condition, thought to be benign, in which microscopic amounts of blood and protein are present in the urine, occurring commonly among athletes after strenuous exercise.
- psychochemistry — the treatment of mental illnesses by drugs
- psychogeriatric — the psychology of old age.
- psychohistorian — a person who writes psychohistory
- psychotherapist — the treatment of psychological disorders or maladjustments by a professional technique, as psychoanalysis, group therapy, or behavioral therapy.
- pulchritudinous — physically beautiful; comely.
- quasihistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- raise one's hat — to take one's hat briefly off one's head as a greeting or mark of respect
- ramrod straight — having a very straight figure
- relative to sth — Relative to something means with reference to it or in comparison with it.
- religious right — US right-wing Christian movement
- reorchestration — a renewed or second orchestration of a piece of music, the act of reorchestrating
- reservoir patch — A reservoir patch is an adhesive patch enclosing an amount of medicine. The patch is applied to the skin, and the medicine in it is delivered through a membrane into the skin and into the bloodstream.
- rhesus positive — relating to blood containing Rhesus antigen D
- rheumatism-root — spotted wintergreen.
- rhodesian front — the governing party in Zimbabwe (then called Rhodesia) 1962–78
- right ascension — the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours.
- right of asylum — the right of alien fugitives to protection or nonextradition in a country or its embassy.
- right of search — the privilege of a nation at war to search neutral ships on the high seas for contraband or other matter, carried in violation of neutrality, that may subject the ship to seizure.
- right to choose — the right of a woman to have a legal abortion if she chooses to do so.
- riverworthiness — (of a boat) the quality or state of being riverworthy
- rochester hills — city in SE Mich., near Detroit: pop. 69,000
- round the twist — mad; eccentric
- round whitefish — a whitefish, Prosopium cylindraceum, found in northern North America and Siberia, having silvery sides and a dark bronze back.
- rowland heights — a city in SW California, near Los Angeles.
- rub elbows with — the bend or joint of the human arm between upper arm and forearm.
- saprophytically — any organism that lives on dead organic matter, as certain fungi and bacteria.
- scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
- schillerization — the process of altering crystals to produce schiller
- school district — A school district is an area which includes all the schools that are situated within that area and are governed by a particular authority.
- scratching post — a block or post of wood, usually covered with carpeting, on which a cat can use its claws.
- self-authorized — given or endowed with authority: an authorized agent.
- self-worthiness — the sense of one's own value or worth as a person; self-esteem; self-respect.
- semilogarithmic — (of graphing) having one scale logarithmic and the other arithmetic or of uniform gradation.
- serve one right — to act as a servant.
- service history — information concerning all of a car's services (ie overhauls, checks, or repairs)