17-letter words containing p, a, r, i
- appalachian trail — hiking trail extending from central Me. to N Ga., along the Appalachian Mountains: c. 2,050 mi (3,299 km)
- application layer — (networking) The top layer of the OSI seven layer model. This layer handles issues like network transparency, resource allocation and problem partitioning. The application layer is concerned with the user's view of the network (e.g. formatting electronic mail messages). The presentation layer provides the application layer with a familiar local representation of data independent of the format used on the network.
- appointed actuary — An appointed actuary is an actuary appointed by a life insurance company, whose main role is to carry out a regular valuation of the reserves held to pay future policy benefits.
- 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
- aromatic compound — an organic compound that contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor.
- arsenic poisoning — poisoning by arsenic
- articulatory loop — a short-term memory system that enables a person to remember short strings of words by rehearsing them repeatedly in his head
- 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 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
- australian kelpie — one of an Australian breed of medium-sized sheepherding dogs having a short, harsh, straight coat in a combination of colors that can include black, red, tan, fawn, chocolate, or smoke blue, probably developed by crossbreeding between the border collie and dingo.
- 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
- baltimore clipper — a small, fast American sailing vessel of the early 19th century, having a sharp hull form and two masts with a pronounced rake and carrying a brig or schooner rig.
- banking principle — the principle that bank notes are a form of credit and should be issued freely in order to maintain an elastic currency.
- bari delle puglie — Italian name of Bari.
- basic proposition — protocol (def 6).
- behaviour therapy — any of various means of treating psychological disorders, such as desensitization, aversion therapy, and instrumental conditioning, that depend on the patient systematically learning new modes of behaviour
- 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.
- biological parent — a parent who has conceived (biological mother) or sired (biological father) rather than adopted a child and whose genes are therefore transmitted to the child.
- biopharmaceutical — of or relating to drugs produced using biotechnology
- blind carbon copy — a duplicate of anything written or typed, or a copy of an email or other electronic document, that is sent to someone whose name is not visible to the primary addressee. Abbreviation: bcc.
- boileau-despreaux — Nicolas [nee-kaw-lah] /ni kɔˈlɑ/ (Show IPA), 1636–1711, French critic and poet.
- book depreciation — Book depreciation is depreciation in a company's internal financial records that is different from the amount that is used for taxes.
- boolean operation — any operation in which each of the operands and the result take one of two values.
- bradford spinning — a wool-spinning method in which the fibers are oiled prior to combing and subsequently spun into worsted yarn.
- branch prediction — (processor, algorithm) A technique used in some processors with instruction prefetch to guess whether a conditional branch will be taken or not and prefetch code from the appropriate location. When a branch instruction is executed, its address and that of the next instruction executed (the chosen destination of the branch) are stored in the Branch Target Buffer. This information is used to predict which way the instruction will branch the next time it is executed so that instruction prefetch can continue. When the prediction is correct (and it is over 90% of the time), executing a branch does not cause a pipeline break. Some later CPUs simply prefetch both paths instead of trying to predict which way the branch will go. An extension of the idea of branch prediction is speculative execution.
- brazilian peridot — a light yellowish-green tourmaline used as a gem: not a true peridot.
- breach of promise — (formerly) failure to carry out one's promise to marry
- bring up the rear — to be at the back in a procession, race, etc
- brompton cocktail — an analgesic mixture, usually containing morphine and cocaine and sometimes other narcotic substances in an alcohol solution, administered primarily to advanced cancer patients.
- california privet — a privet, Ligustrum ovalifolium, of the olive family, native to Japan, having glossy, oval leaves and long clusters of white flowers, widely used for hedges in the U.S.
- camp-fire-members — a U.S. organization for girls and boys that emphasizes the building of character and good citizenship through work, health, and love; originally founded for girls (Camp Fire girls) in 1910, it is now open to both boys and girls (Camp Fire members)
- campus university — a university in which the buildings, often including shops and cafés, are all on one site
- cancer specialist — a medical professional who specializes in the treatment or study of malignant growths or tumours
- canine parvovirus — a highly contagious viral disease of dogs characterized by vomiting, haemorrhagic diarrhoea, depression, and, in severe cases, death
- capital formation — the net additions to a capital stock in an accounting period
- capital structure — the way that a company finances its assets through a combination of equity, debt etc
- carbon disulphide — a colourless slightly soluble volatile flammable poisonous liquid commonly having a disagreeable odour due to the presence of impurities: used as an organic solvent and in the manufacture of rayon and carbon tetrachloride. Formula: CS2
- carbon microphone — a microphone in which a diaphragm, vibrated by sound waves, applies a varying pressure to a container packed with carbon granules, altering the resistance of the carbon. A current flowing through the carbon is thus modulated at the frequency of the sound waves
- cardiac pacemaker — a small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart
- cardiac tamponade — tamponade (def 2).
- cardiac-tamponade — Medicine/Medical. the use of a tampon, as to stop a hemorrhage.
- cardio striptease — a form of keep-fit exercise in which people move their bodies in the manner of striptease artists