15-letter words containing h, o, r, n, a, t
- northern paiute — a member of an American Indian people of Nevada, Oregon, and California, allied to the Paiute.
- northern parula — any of several American wood warblers of the genus Parula, especially P. americana (northern parula) having bluish plumage with a yellow throat and breast.
- northwestwardly — Towards the northwest.
- not in the race — given or having no chance
- not turn a hair — any of the numerous fine, usually cylindrical, keratinous filaments growing from the skin of humans and animals; a pilus.
- nothingarianism — Beliefs and practices of a nothingarian.
- nottinghamshire — a county in central England. 854 sq. mi. (2210 sq. km).
- omnium gatherum — a miscellaneous collection.
- omnium-gatherum — a miscellaneous collection.
- on a shoestring — If you do something or make something on a shoestring, you do it using very little money.
- on the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.
- on the decrease — decreasing
- on the increase — growing, increasing
- on the track of — If you are on the track of someone or something, you are trying to find them, or find information about them.
- on the trail of — If you are on the trail of a person or thing, you are trying hard to find them or find out about them.
- on/off the mark — If something is off the mark, it is inaccurate or incorrect. If it is on the mark, it is accurate or correct.
- one's last hour — the time of one's death
- orchestrational — Of or pertaining to orchestration.
- organophosphate — Biochemistry. any of a variety of organic compounds that contain phosphorus and often have intense neurotoxic activity: originally developed as nerve gases, now widely used as insecticides and fire retardants.
- ornithodelphian — of or relating to mammals of the class Ornithodelphia
- orthodontically — from an orthodontic point of view
- otaheite orange — a small citrus bush, Citrus limonia otaitensis, having fragrant flowers and small orange fruit, often cultivated as a houseplant.
- out of thin air — suddenly and unexpectedly
- 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.
- overachievement — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
- palaeoanthropic — relating to palaeoanthropology
- palaeontography — the branch of palaeontology concerned with the description of fossils
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- parthenogenesis — development of an egg without fertilization.
- parthenogenetic — development of an egg without fertilization.
- patagonian hare — a burrowing, gray, long-eared and long-legged cavy of the genus Dolichotis, native to South America.
- pentaerythritol — a white, crystalline, water-soluble powder, C 5 H 1 2 O 4 , used chiefly in the manufacture of alkyd resins, varnishes, plasticizers, and explosives.
- perchloroethane — hexachloroethane.
- permanent tooth — any of the 32 adult teeth that replace the 20 milk teeth.
- personal growth — development as an individual
- phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.
- phenylketonuria — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- philanthropical — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- phonautographic — relating to a phonautograph or a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- 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.
- phototransistor — a transistor that amplifies current induced by photoconductivity.
- pinochet ugarte — Augusto [ou-goos-taw] /aʊˈgus tɔ/ (Show IPA), 1915–2006, Chilean army general and political leader: president 1973–90.
- 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.
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- polychlorinated — having multiple chlorine atoms
- 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