24-letter words containing o, p, t, i, 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 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
- 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
- austin kyoto common lisp — (language) (AKCL) A collection of ports, bug fixes, and performance improvements to KCL by William Schelter <[email protected]>, <[email protected]>, University of Texas. Version 1-615 includes ports to Decstation 3100, HP9000/300, i386/Sys V, IBM-PS2/AIX, IBM-RT/AIX, SGI, Sun-3/Sunos 3 or 4, Sun-4, Sequent Symmetry, IBM370/AIX, VAX/BSD VAX/Ultrix, NeXT.
- 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.
- 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.
- british technology group — an organization formed in 1981 by the merger of the National Enterprise Board and the National Research and Development Corporation to encourage and finance technological innovation: privatized in 2000
- californian spangled cat — a breed of short-haired cat with a spotted coat, bred in California to resemble a leopard in appearance
- 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
- 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.
- 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.
- 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
- 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
- cooperative credit union — a cooperative group that makes loans to its members at low rates of interest.
- cooperative multitasking — (parallel, operating system) A form of multitasking where it is the responsibility of the currently running task to give up the processor to allow other tasks to run. This contrasts with pre-emptive multitasking where the task scheduler periodically suspends the running task and restarts another. Cooperative multitasking requires the programmer to place calls at suitable points in his code to allow his task to be descheduled which is not always easy if there is no obvious top-level main loop or some routines run for a long time. If a task does not allow itself to be descheduled all other tasks on the system will appear to "freeze" and will not respond to user action. The advantage of cooperative multitasking is that the programmer knows where the program will be descheduled and can make sure that this will not cause unwanted interaction with other processes. Under pre-emptive multitasking, the scheduler must ensure that sufficient state for each process is saved and restored that they will not interfere. Thus cooperative multitasking can have lower overheads than pre-emptive multitasking because of the greater control it offers over when a task may be descheduled. Cooperative multitasking is used in RISC OS, Microsoft Windows and Macintosh System 7.
- crime prevention officer — a member of the police who advises the public on how best to avoid crimes, esp being burgled
- cross/step over the line — If you say that someone has crossed the line or has stepped over the line, you mean that they have behaved in a way that is considered unacceptable.
- data encryption standard — (DES) The NBS's popular, standard encryption algorithm. It is a product cipher that operates on 64-bit blocks of data, using a 56-bit key. It is defined in FIPS 46-1 (1988) (which supersedes FIPS 46 (1977)). DES is identical to the ANSI standard Data Encryption Algorithm (DEA) defined in ANSI X3.92-1981. DES has been implemented in VLSI. SunOS provides a des command which can make use of DES hardware if fitted. Neither the software nor the hardware are supposed to be distributed outside the USA.
- decentralized processing — the use of word processing or data processing units in stand-alone or localized situations
- decision support systems — (application, tool) (DSS) Software tools to help with decision support.
- descriptive bibliography — the aspect of bibliography concerned with the close physical study and description of books and other works.
- detoxification programme — a programme of treatment for alcoholism or drug addiction
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