17-letter words containing o, p, e
- 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.
- arsenic poisoning — poisoning by arsenic
- artificial person — a human being, whether an adult or child: The table seats four persons.
- asperger syndrome — a developmental disorder characterized by severely impaired social skills, repetitive behaviors, and often, a narrow set of interests, but not involving delayed development of linguistic and cognitive abilities: now considered one of the autism spectrum disorders.
- astral projection — the departure of the astral body from the physical body, in order to travel to the astral plane
- astrophotographer — A person, especially an astronomer, who takes photographs of the stars.
- at cross purposes — an opposing or contrary purpose.
- at cross-purposes — If people are at cross-purposes, they do not understand each other because they are working towards or talking about different things without realizing it.
- at one fell swoop — to sweep through the air, as a bird or a bat, especially down upon prey.
- 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 one's own pace — If you do something at your own pace, you do it at a speed that is comfortable for you.
- at the expense of — If you achieve something at the expense of someone, you do it in a way which might cause them some harm or disadvantage.
- 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
- background report — a report on someone or something that sheds light on their background, esp a report on the background of a person convicted of a crime before they are sentenced by a judge
- 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.
- banana phenomenon — banana problem
- bangalore torpedo — an explosive device in a long metal tube, used to blow gaps in barbed-wire barriers
- barred woodpecker — a climbing bird, Picoides minor, of the family Picidae
- bbc microcomputer — A series of 6502-based personal computers launched by Acorn Computers Ltd. in January 1982, for use in the British Broadcasting Corporation's educational programmes on computing. The computers are noted for their reliability (many are still in active service in 1994) and both hardware and software were designed for easy expansion. The 6502-based computers were succeeded in 1987 by the Acorn Archimedes family.
- beat to the punch — to be quicker than (another) in doing something, as in striking a blow
- 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
- bent out of shape — very angry, upset, or agitated
- beyond comparison — outstanding, without equal
- beyond redemption — If you say that someone or something is beyond redemption, you mean that they are so bad it is unlikely that anything can be done to improve them.
- 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.
- biological weapon — a weapon which uses a biological agent to harm people and other living organisms
- biopharmaceutical — of or relating to drugs produced using biotechnology
- bjarne stroustrup — (person) The father of C++ and author of the C++ bible.
- blackpoll warbler — a North American warbler, Dendroica striata, the adult male of which has the top of the head black.
- blasphemous libel — In Britain, previously, the crime committed if a person insults, offends, or vilifies the deity, Christ, or the Christian religion
- blood-drop emlets — a Chilean scrophulariaceous plant, Mimulus luteus, naturalized in Europe, having red-spotted yellow flowers
- blowout preventer — A blowout preventer is a valve that can be closed when there is uncontrolled flow of fluids.
- 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
- body center plate — one of a pair of plates that fit together and support the body of a car on a truck, while allowing the truck to rotate with respect to the body. One plate (body center plate) is attached to the underside of the car body and the other (truck center plate) is part of the car truck.
- 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).
- 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.
- 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.
- boulder raspberry — a shrub, Rubus deliciosus, of Colorado, having large white flowers and purple fruit.
- 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
- brocot escapement — a type of anchor escapement.
- bulbous buttercup — a European buttercup, Ranunculus bulbosus, having yellow flowers in irregular branching clusters: a common weed in North America.