15-letter words containing t, h, o, r, u
- odontorhynchous — (of birds) having toothlike ridges inside the beak
- okhotsk current — a cold ocean current flowing SW from the Bering Sea, E of the Kurile Islands, along the E coast of Japan where it meets the Japan Current.
- omnium gatherum — a miscellaneous collection.
- omnium-gatherum — a miscellaneous collection.
- one's last hour — the time of one's death
- open your mouth — If you say that someone does not open their mouth, you are emphasizing that they never say anything at all.
- ornithorhynchus — the platypus.
- 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.
- orthodox church — the Christian church comprising the local and national Eastern churches that are in communion with the ecumenical patriarch of Constantinople; Byzantine Church.
- out of thin air — suddenly and unexpectedly
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- outreach worker — a person who does work designed to help and encourage disadvantaged members of the community
- over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- overthrust belt — an elongate area in which thick rock layers have been pushed over one another by compressional forces within the earth's crust.
- oyster mushroom — oyster cap.
- patchwork quilt — cover sewn from patches of cloth
- petroleum ether — a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent
- 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.
- 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.
- 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
- phosphate group — the group or radical obtained by removal of one or more hydrogen atoms from phosphoric acid.
- photofluorogram — a recording on photographic film of images produced by a fluoroscopic examination.
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- photomultiplier — an extremely sensitive detector of light and of other radiation, consisting of a tube in which the electrons released by radiation striking a photocathode are accelerated, greatly amplifying the signal obtainable from small quantities of radiation.
- photoproduction — the light-induced production of a species of molecule such as a radical or ion
- pinochet ugarte — Augusto [ou-goos-taw] /aʊˈgus tɔ/ (Show IPA), 1915–2006, Chilean army general and political leader: president 1973–90.
- 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.
- point of honour — a circumstance, event, etc, that involves the defence of one's principles, social honour, etc
- protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
- 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.
- puerto ayacucho — a city in S Venezuela, on the Orinoco River.
- pulchritudinous — physically beautiful; comely.
- pulmobranchiate — possessing a pulmobranch
- put on the ritz — ostentatious or pretentious display.
- quantity theory — a theory stating that the general price level varies directly with the quantity of money in circulation and the velocity with which it is circulated, and inversely with the volume of production expressed by the total number of money transactions
- quasihistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- radioautography — autoradiography.
- reauthorization — the act or process of reauthorizing something
- religious right — US right-wing Christian movement
- rhesus positive — relating to blood containing Rhesus antigen D
- rheumatism-root — spotted wintergreen.
- rhyming couplet — a pair of lines in poetry that rhyme and usually have the same rhythm
- right of asylum — the right of alien fugitives to protection or nonextradition in a country or its embassy.
- right-hand buoy — a distinctive buoy marking the side of a channel regarded as the right, or starboard, side.
- rightabout-face — a turning directly about so as to face in the opposite direction
- roche moutonnee — a rounded, glacially eroded rock outcrop, usually one of a group, resembling a sheep's back.