15-letter words containing h, o, a, r
- patchwork quilt — cover sewn from patches of cloth
- pavel petrovich — Paul I (def 2).
- peacock feather — a (distinctive and brightly coloured) feather from the peacock
- 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.
- perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
- 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.
- pharmacological — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacotherapy — the treatment of disease through the administration of drugs.
- phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
- 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
- phonocardiogram — the graphic record produced by a phonocardiograph.
- phonogramically — in a phonogramic manner
- phosphate group — the group or radical obtained by removal of one or more hydrogen atoms from phosphoric acid.
- 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.
- phosphoric acid — any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.
- phosphorylation — to introduce the phosphoryl group into (an organic compound).
- phosphorylative — of or relating to phosphorylation
- photodegradable — (of a substance) capable of being broken down by light.
- photofluorogram — a recording on photographic film of images produced by a fluoroscopic examination.
- photoheliograph — an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- photolithograph — Also, photolithoprint [foh-tuh-lith-uh-print] /ˌfoʊ təˈlɪθ əˌprɪnt/ (Show IPA). a lithograph printed from a stone or the like upon which a picture or design has been formed by photography.
- photomacrograph — a photograph showing a subject at actual size or somewhat larger.
- photomicrograph — a photograph taken through a microscope.
- photorefractive — of or relating to a change in the index of refraction by spatial variations of the light intensity, as in a laser.
- phototelegraphy — facsimile (def 2a).
- phototopography — topographical surveying employing photogrammetric methods.
- phototransistor — a transistor that amplifies current induced by photoconductivity.
- phototropically — in a phototropic manner
- phototypography — (formerly) the art or technique of making printing surfaces by light or photography, by any of a large number of processes.
- photoxylography — the process of using photography in order to produce an image on wood, for the use of a wood engraver
- phrasemongering — the act of coining memorable phrases
- phrenologically — in a manner relating to phrenology
- physical memory — (memory management) The memory hardware (normally RAM) installed in a computer. The term is only used in contrast to virtual memory.
- physiotherapist — physical therapy.
- 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.
- plain of sharon — a plain in W Israel, between the Mediterranean and the hills of Samaria, extending from Haifa to Tel Aviv
- pleochroic halo — a dark-colored, microscopic ring around a minute radioactive particle in certain mineral crystals, used in estimating the age of the rocks containing these crystals
- plethysmography — the tracking of changes measured in bodily volume
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- polychlorinated — having multiple chlorine atoms
- polymorphically — in a polymorphic manner
- polysomnography — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.