17-letter words containing o, p, s, i
- a sporting chance — If you have a sporting chance of doing something, it is quite likely that you will do that thing.
- absorption nebula — a cloud of interstellar gas and dust that absorbs and thus obscures the light from stars behind it, appearing as a dark patch in front of a bright nebula or in an otherwise bright area of sky.
- acanthopterygians — Plural form of acanthopterygian.
- access permission — permission
- accessory pigment — any pigment in plants that can absorb light energy and pass the electrons along to the primary pigment which starts the process of photosynthesis.
- active suspension — a type of suspension in a car that is controlled by an onboard computer and improves the vehicle's roadholding so that it takes corners, accelerates, and brakes more smoothly
- acupressure point — any of the specific points on the body where pressure is applied in acupressure
- administratorship — a person who manages or has a talent for managing.
- air-transportable — that can be transported by aircraft: air-transportable equipment.
- alcohol poisoning — the ingestion of a lethal or potentially lethal amount of alcohol
- alligator snapper — a large, freshwater snapping turtle (Macroclemys temmincki) of the SE U.S. and the Mississippi Valley, found chiefly in rivers and bayous: it may weigh up to 100 kg (220 lb)
- altamonte springs — a city in central Florida.
- ammonium sulphate — a white soluble crystalline solid used mainly as a fertilizer and in water purification. Formula: (NH4)2SO4
- anglo-saxon point — ATA point
- anthropomorphises — Third-person singular simple present indicative form of anthropomorphise.
- anthropomorphosis — transformation into human form
- anthroposemiotics — The study of human communication.
- anti-monopolistic — a person who has a monopoly.
- anticipatory loss — grief that is felt in anticipation of someone's death
- antiprostaglandin — A prostaglandin inhibitor.
- antivirus program — antivirus software
- apostolic fathers — the Fathers of the early Church who immediately followed the Apostles
- april fool's joke — (humour, event) (AFJ) Elaborate April Fool's hoaxes are a long-established tradition on Usenet and Internet; see kremvax for an example. In fact, April Fool's Day is the *only* seasonal holiday marked by customary observances on the hacker networks.
- armchair shopping — buying goods using a computer, telephone, or television in the home or via the postal system
- arsenic poisoning — poisoning by arsenic
- artificial person — a human being, whether an adult or child: The table seats four persons.
- astral projection — the departure of the astral body from the physical body, in order to travel to the astral plane
- at one's disposal — If you have something at your disposal, you are able to use it whenever you want, and for whatever purpose you want. If you say that you are at someone's disposal, you mean that you are willing to help them in any way you can.
- at swords' points — ready to quarrel or fight
- attraction sphere — centrosphere (sense 1)
- audio description — a facility provided for visually impaired people in which a film, television programme, or play is described through audio technology
- australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
- avoirdupois pound — a pound weighing 16 ounces
- babi yar symphony — a symphony (1962) by Dimitri Dimitrievich Shostakovich.
- bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
- basic proposition — protocol (def 6).
- beyond comparison — outstanding, without equal
- binary opposition — a relation between the members of a pair of linguistic items, as a pair of distinctive features, such that one is the absence of the other, as voicelessness and voice, or that one is at the opposite pole from the other, as stridency and mellowness.
- blasphemous libel — In Britain, previously, the crime committed if a person insults, offends, or vilifies the deity, Christ, or the Christian religion
- blowpipe analysis — a type of chemical analysis in which the intensely hot flame of a blowpipe vaporizes a mineral or other substance with a characteristically colored flame and a unique odor, so as to identify chemical elements in a substance
- boileau-despreaux — Nicolas [nee-kaw-lah] /ni kɔˈlɑ/ (Show IPA), 1636–1711, French critic and poet.
- boiler horsepower — a unit of measurement of the ability of a boiler to evaporate water, usually given as the ability to evaporate 34½ pounds (15.6 kg) of water an hour, into dry saturated steam from and at 212°F (100°C).
- boothia peninsula — a peninsula of N Canada: the northernmost part of the mainland of North America, lying west of the Gulf of Boothia, an arm of the Arctic Ocean
- bottom-up testing — (programming) An integration testing technique that tests the low-level components first using test drivers for those components that have not yet been developed to call the low-level components for test. Compare bottom-up implementation.
- bradford spinning — a wool-spinning method in which the fibers are oiled prior to combing and subsequently spun into worsted yarn.
- breach of promise — (formerly) failure to carry out one's promise to marry
- business envelope — an envelope into which standard-size (81⁄2″ × 11″) letterhead stationery can be put with only two folds
- café-au-lait spot — a brown patch on the skin that can occur normally in small numbers or in neurofibromatosis, when they are more numerous
- calcium phosphate — the insoluble nonacid calcium salt of orthophosphoric acid (phosphoric(V) acid): it occurs in bones and is the main constituent of bone ash. Formula: Ca3(PO4)2
- canine parvovirus — a highly contagious viral disease of dogs characterized by vomiting, haemorrhagic diarrhoea, depression, and, in severe cases, death
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