15-letter words containing n, o, r, h
- orange hawkweed — a European composite plant, Hieracium aurantiacum, having orange, dandelionlike flowers, growing as a weed, especially in eastern North America.
- orchestrational — Of or pertaining to orchestration.
- ordinary shares — British. a share of common stock.
- organized chaos — a complex situation or process that appears chaotic while having enough order to achieve progress or goals
- organochlorines — Plural form of organochlorine.
- 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
- ornithorhynchus — the platypus.
- orphaned i-node — (operating system) /or'f*nd i:'nohd/ [Unix] 1. A file that retains storage but no longer appears in the directories of a file system.
- ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
- orthodontically — from an orthodontic point of view
- 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.
- 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 one's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- 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.
- overemphasizing — Present participle of overemphasize.
- paedophile ring — a group of people who take part in illegal sexual activity involving children
- pairs champions — competitors in or winners of a pairs championship
- 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.
- passenger coach — a carriage in which passengers sit
- 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.
- pepin the short — ("Pepin the Short") died a.d. 768, king of the Franks 751–768 (father of Charlemagne).
- 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.
- phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
- phenylene group — any of three bivalent, isomeric groups having the formula –C 6 H 4 –, derived from benzene by the removal of two hydrogen atoms.
- 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.
- phenylketonuric — 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.
- phloem necrosis — a disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.
- 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
- phonocardiogram — the graphic record produced by a phonocardiograph.
- phonogramically — in a phonogramic manner
- 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.
- phosphor bronze — a bronze, composed of about 80 percent copper, 10 percent tin, 9 percent antimony, and 1 percent phosphorus, having great hardness and resistance to corrosion.
- phosphorescence — the property of being luminous at temperatures below incandescence, as from slow oxidation in the case of phosphorus or after exposure to light or other radiation.
- phosphorylation — to introduce the phosphoryl group into (an organic compound).
- photoelectronic — relating to electronic effects or devices affected by light
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.