15-letter words containing s, t, h, r, i, n
- on the increase — growing, increasing
- onychocryptosis — a form of nail disease in which nails are ingrown
- orchestrational — Of or pertaining to orchestration.
- ornithorhynchus — the platypus.
- osteochondritis — inflammation of bone and cartilage.
- osteochondrosis — a disease of bone and cartilage growth centers in children that begins as a necrosis and is followed by regeneration or renewed calcification.
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- parthenogenesis — development of an egg without fertilization.
- pepin the short — ("Pepin the Short") died a.d. 768, king of the Franks 751–768 (father of Charlemagne).
- phosphocreatine — a compound, C 4 H 1 0 O 5 N 3 P, found chiefly in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction.
- phosphorylation — to introduce the phosphoryl group into (an organic compound).
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- photosensitizer — a drug, food, or other chemical that increases sensitivity to light and other visible photons
- phototransistor — a transistor that amplifies current induced by photoconductivity.
- pink-shirt book — (publication) "The Peter Norton Programmer's Guide to the IBM PC". The original cover featured a picture of Peter Norton with a silly smirk on his face, wearing a pink shirt. Perhaps in recognition of this usage, the current edition has a different picture of Norton wearing a pink shirt. See also book titles.
- 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.
- 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.
- 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.
- 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.
- psychohistorian — a person who writes psychohistory
- pulchritudinous — physically beautiful; comely.
- raise one's hat — to take one's hat briefly off one's head as a greeting or mark of respect
- reorchestration — a renewed or second orchestration of a piece of music, the act of reorchestrating
- reversing light — Reversing lights are the white lights on the back of a motor vehicle which shine when the vehicle is in reverse gear.
- rhesus negative — relating to blood not containing Rhesus antigen D
- 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.
- riverworthiness — (of a boat) the quality or state of being riverworthy
- 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.
- russian thistle — a saltwort, Salsola kali tenuifolia, that has narrow, spinelike leaves, a troublesome weed in the central and western U.S.
- saffian leather — leather made of sheepskin or goatskin tanned with sumac and usually dyed a bright color
- scarlet lychnis — a plant, Lychnis chalcedonica, of the pink family, having scarlet or sometimes white flowers, the arrangement and shape of the petals resembling a Maltese cross.
- scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
- schiffs-reagent — a solution of rosaniline and sulfurous acid in water, used to test for the presence of aldehydes.
- schillerization — the process of altering crystals to produce schiller
- scratching post — a block or post of wood, usually covered with carpeting, on which a cat can use its claws.
- self-enrichment — an act of enriching.
- self-worthiness — the sense of one's own value or worth as a person; self-esteem; self-respect.
- serve one right — to act as a servant.
- seven-year itch — scabies.
- shadow minister — a member of the main opposition party in Parliament who would hold ministerial office if their party were in power