24-letter words containing o, a, p, e, c
- a bit of slap and tickle — sexual play
- a chip off the old block — If you describe someone as a chip off the old block, you mean that they are just like one of their parents in character or behaviour.
- a chip on one's shoulder — If you say that someone has a chip on their shoulder, you think that they feel inferior or that they believe they have been treated unfairly.
- a fair crack of the whip — If you get a fair crack of the whip, you are allowed a reasonable opportunity to succeed at something.
- a licence to print money — If you describe a commercial activity as a licence to print money, you mean that it allows people to gain a lot of money with little effort or responsibility.
- accelerated depreciation — a method by which a company depreciates a fixed asset in such a way that the amount of depreciation is higher at the start of that asset's life
- advance purchase booking — Advance purchase booking is an arrangement that allows you to book and pay for a hotel room before you arrive, usually at a discounted rate.
- almost periodic function — a function that repeats its values approximately at almost equally spaced intervals of its domain.
- alternating bit protocol — (networking) (ABP) A simple data link layer protocol that retransmits lost or corrupted messages. Messages are sent from transmitter A to receiver B. Assume that the channel from A to B is initialised and that there are no messages in transit. Each message contains a data part, a checksum, and a one-bit sequence number, i.e. a value that is 0 or 1. When A sends a message, it sends it continuously, with the same sequence number, until it receives an acknowledgment (ACK) from B that contains the same sequence number. When that happens, A complements (flips) the sequence number and starts transmitting the next message. When B receives a message from A, it checks the checksum. If the message is not corrupted B sends back an ACK with the same sequence number. If it is the first message with that sequence number then it is sent for processing. Subsequent messages with the same sequence bit are simply acknowledged. If the message is corrupted B sends back an negative/error acknowledgment (NAK). This is optional, as A will continue transmitting until it receives the correct ACK. A treats corrupted ACK messages, and NAK messages in the same way. The simplest behaviour is to ignore them all and continue transmitting.
- appropriations committee — a committee dealing with appropriations
- atanasoff-berry computer — (computer) (ABC) An early design for a binary calculator, one of the predecessors of the digital computer. The ABC was partially constructed between 1937 and 1942 by Dr. John Vincent Atanasoff and Clifford Berry at Iowa State College. As well as binary arithmetic, it incorporated regenerative memory, parallel processing, and separation of memory and computing functions. The electronic parts were mounted on a rotating drum, making it hybrid electronic/electromechanical. It was designed to handle only a single type of mathematical problem and was not automated. The results of a single calculation cycle had to be retrieved by a human operator, and fed back into the machine with all new instructions, to perform complex operations. It lacked any serious form of logical control or conditional statements. Atanasoff's patent application was denied because he never have a completed, working product. Ideas from the ABC were used in the design of ENIAC (1943-1946).
- autism spectrum disorder — any of various disorders, as autism and Asperger syndrome, commonly manifesting in early childhood and characterized by impaired social or communication skills, repetitive behaviors, or a restricted range of interests.
- auto-erotic asphyxiation — asphyxia caused by intentionally strangling oneself while masturbating in order to intensify the orgasm through reduced oxygen flow to the brain.
- automatic repeat request — (communications) (ARQ) A modem error control protocol in which the receiver asks the transmitter to resend corrupted data.
- avian pneumoencephalitis — Newcastle disease.
- backup domain controller — (networking) (BDC) A server in a network of Microsoft Windows computers that maintains a copy of the SAM database and handles access requests that the Primary Domain Controller (PDC) doesn't respond to. There may be zero or more BDCs in a network. They increase reliability and reduce load on the PDC.
- behavioral psychophysics — the branch of psychology that deals with measurement of mental and sensory phenomena brought on by physical stimuli.
- beta-adrenergic receptor — a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes.
- caeremoniale episcoporum — the liturgical book, used by bishops, containing regulations and prescriptions that are authoritative in matters not covered in the missal or other service books.
- californian spangled cat — a breed of short-haired cat with a spotted coat, bred in California to resemble a leopard in appearance
- campbell-stokes recorder — an instrument for recording hours of sunshine per day, consisting of a solid glass sphere that focuses rays of sunlight onto a light-sensitive card on which a line is burnt
- cast pearls before swine — to present something of great interest or value to someone incapable of appreciating it
- cathode ray oscilloscope — A cathode ray oscilloscope is an instrument based upon the cathode ray tube, that provides a visible image of one or more rapidly varying electrical quantities.
- cellular multiprocessing — (architecture, parallel) (CMP) The partitioning of processors into separate computing environments running different operating systems. The term cellular multiprocessing appears to have been coined by Unisys, who are developing a system where computers communicate as clustered machines through a high speed bus, rather than through communication protocols such as TCP/IP. The Unisys system is based on Intel processors, initially the Pentium II Xeon and moving on to the 64-bit Merced processors later in 1999. It will be scalable from four up to 32 processors, which can be clustered or partitioned in various ways. For example a sixteen processor system could be configured as four Windows NT systems (each functioning as a four-processor symmetric multiprocessing system), or an 8-way NT and 8-way Unix system. Supported operating systems will be Windows NT, SCO's Unixware 7.0, Unisys' SVR4 Unix and possibly the OS2200 and MCP-AS mainframe operating systems (with the assistance of Unisys' own dedicated chipset).
- cerebrospinal meningitis — an acute infectious form of meningitis caused by the bacterium Neisseria meningitidis, characterized by high fever, skin rash, delirium, stupor, and sometimes coma
- chain and sprocket drive — A chain and sprocket drive is a type of power transmission in which a roller chain engages with two or more toothed wheels or sprockets, used in engines as a drive from crankshaft to camshaft.
- circuit court of appeals — court of appeals (sense 2)
- coal-fired power station — a power station that generates electricity by the burning of coal
- coefficient of expansion — the amount of expansion (or contraction) per unit length of a material resulting from one degree change in temperature
- colony collapse disorder — a pathological condition affecting a large number of honeybee colonies, in which various stresses may lead to the abrupt disappearance of worker bees from the hive, leaving only the queen and newly hatched bees behind and thus causing the colony to stop functioning. Abbreviation: CCD.
- command-line interpreter — command interpreter
- common program interface — (programming) (CPI) The API of SAA.
- communicative competence — a speaker's internalized knowledge both of the grammatical rules of a language and of the rules for appropriate use in social contexts.
- compact disc interactive — (storage) (CD-i) An embedded application of CD-ROM allowing the user limited interaction with films, games and educational applications via a special controller.
- compact fluorescent lamp — A compact fluorescent lamp is a small fluorescent lamp (= a tubular light bulb coated with phosphor which produces a bright light) that has a lamp life that is much longer than incandescent lamps.
- compensatory lengthening — the lengthening of a vowel when a following consonant is weakened or lost, as the change from Old English niht [nikht] /nɪxt/ (Show IPA) to night [nahyt] /naɪt/ (Show IPA) with loss of [kh] /x/ (Show IPA) and lengthening of [i] /ɪ/ (Show IPA) to a vowel that eventually became [ahy] /aɪ/ (Show IPA).
- compiler target language — (CTL) The intermediate language used by the ALICE parallel machine.
- complement fixation test — a serological test for detecting the presence of a specific antibody or antigen, used in the diagnosis of syphilis, etc
- complement-fixation test — a test for diagnosing an infectious disease by detecting the presence of antibody in the blood, based on the fixing of a known quantity of complement to the antigen being tested and the specific antibody that combines with it. Abbreviation: CFT.
- complementary wavelength — the wavelength of monochromatic light that could be mixed in suitable proportions with a given coloured light so as to produce some specified achromatic light
- completely regular space — a topological space in which, for every point and a closed set not containing the point, there is a continuous function that has value 0 at the given point and value 1 at each point in the closed set.
- complexometric titration — a titration in which a coloured complex is formed, usually by the use of a chelating agent, such as EDTA, the end point being marked by a sharp decrease in the concentration of free metal ions
- compressed petroleum gas — a gas liquefied by compression, consisting of flammable hydrocarbons, as propane and butane, obtained as a by-product from the refining of petroleum or from natural gas: used chiefly as a domestic fuel in rural areas, as an industrial and motor fuel, and in organic synthesis, especially of synthetic rubber.
- computational complexity — (algorithm) The number of steps or arithmetic operations required to solve a computational problem. One of the three kinds of complexity.
- computer design language — (language) An ALGOL-like language for computer design.
- computer-assisted makeup — pagination (def 4a).
- condensed matter physics — the branch of physics that deals with the macroscopic physical properties of matter, especially solids; the study of the electromagnetic, structural, and thermodynamic properties of solids.
- condensed-matter physics — the branch of physics that deals with the macroscopic physical properties of matter, especially solids; the study of the electromagnetic, structural, and thermodynamic properties of solids.
- constantinopolitan creed — a formal statement of the chief tenets of Christian belief, adopted by the first Nicene Council.
- consultant paediatrician — a paediatrician who has attained the rank of consultant
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