21-letter words containing a, c, e, s, v, i
- active matrix display — (hardware) A type of liquid crystal display where each display element (each pixel) includes an active component such as a transistor to maintain its state between scans. Contrast passive matrix display.
- administrative county — a principal administrative division in Great Britain, usually not coextensive with traditional county boundaries.
- advanced risc machine — (processor) (ARM, Originally Acorn RISC Machine). A series of low-cost, power-efficient 32-bit RISC microprocessors for embedded control, computing, digital signal processing, games, consumer multimedia and portable applications. It was the first commercial RISC microprocessor (or was the MIPS R2000?) and was licensed for production by Asahi Kasei Microsystems, Cirrus Logic, GEC Plessey Semiconductors, Samsung, Sharp, Texas Instruments and VLSI Technology. The ARM has a small and highly orthogonal instruction set, as do most RISC processors. Every instruction includes a four-bit code which specifies a condition (of the processor status register) which must be satisfied for the instruction to be executed. Unconditional execution is specified with a condition "true". Instructions are split into load and store which access memory and arithmetic and logic instructions which work on registers (two source and one destination). The ARM has 27 registers of which 16 are accessible in any particular processor mode. R15 combines the program counter and processor status byte, the other registers are general purpose except that R14 holds the return address after a subroutine call and R13 is conventionally used as a stack pointer. There are four processor modes: user, interrupt (with a private copy of R13 and R14), fast interrupt (private copies of R8 to R14) and supervisor (private copies of R13 and R14). The ALU includes a 32-bit barrel-shifter allowing, e.g., a single-cycle shift and add. The first ARM processor, the ARM1 was a prototype which was never released. The ARM2 was originally called the Acorn RISC Machine. It was designed by Acorn Computers Ltd. and used in the original Archimedes, their successor to the BBC Micro and BBC Master series which were based on the eight-bit 6502 microprocessor. It was clocked at 8 MHz giving an average performance of 4 - 4.7 MIPS. Development of the ARM family was then continued by a new company, Advanced RISC Machines Ltd. The ARM3 added a fully-associative on-chip cache and some support for multiprocessing. This was followed by the ARM600 chip which was an ARM6 processor core with a 4-kilobyte 64-way set-associative cache, an MMU based on the MEMC2 chip, a write buffer (8 words?) and a coprocessor interface. The ARM7 processor core uses half the power of the ARM6 and takes around half the die size. In a full processor design (ARM700 chip) it should provide 50% to 100% more performance. In July 1994 VLSI Technology, Inc. released the ARM710 processor chip. An ARM800 chip is also planned.
- adverse drug reaction — An adverse drug reaction is a harmful effect associated with the use of a medication at a normal dosage.
- aleksandr-nikolaevich — Alexander (Aleksandr Nikolaevich) 1899–1977, Russian pianist and composer, in the U.S.
- as luck would have it — fortunately
- atmospheric inversion — inversion (def 12).
- atmospheric-inversion — an act or instance of inverting.
- aversive conditioning — a type of behavior conditioning in which noxious stimuli are associated with undesirable or unwanted behavior that is to be modified or abolished, as the use of nausea-inducing drugs in the treatment of alcoholism.
- biobehavioral science — any of the various branches of the life sciences, as neurobiology, neurochemistry, or neuroendocrinology, that deal with biological aspects of behavior.
- characteristic vector — a vector for which there exists a scalar such that the value of the vector under a given transformation is equal to the scalar times the vector.
- commercial television — television companies which make money by selling advertising
- communications server — (operating system) IBM's rebranding of ACF.
- comparative statement — a financial statement with figures arranged in two or more parallel columns, each column representing a fiscal year or other period, used to compare performance between periods.
- confirm a reservation — If you confirm a reservation, you inform someone who has booked a room at a hotel that the reservation is definite.
- constitutive equation — A constitutive equation is an equation that describes the relationship between two physical quantities, for example between the stress put on a material and the strain produced on it.
- consummatory behavior — a behavior pattern that occurs in response to a stimulus and that achieves the satisfaction of a specific drive, as the eating of captured prey by a hungry predator (distinguished from appetitive behavior).
- convertible insurance — any form of life or health insurance, either individual or group, that enables the insured to change or convert the insurance to another form, as term to whole life insurance or group to individual health insurance.
- cost driver attribute — (programming) Factors affecting the productivity of software development. These include attributes of the software, computers, personnel, and project.
- criminal conversation — (formerly) a common law action brought by a husband by which he claimed damages against an adulterer
- deprovincialization's — to make provincial in character.
- devil's walking-stick — Hercules'-club (sense 1)
- devil's-walking-stick — Hercules-club (def 2).
- digital videocassette — a videocassette containing magnetic tape used for high-fidelity digital recording or playback of video. Abbreviation: DVC.
- displacement activity — a behavior performed out of its usual context and apparently irrelevant to the prevailing situation, as eating when an unknown individual approaches, tending to occur when appropiate behaviors, as attacking or fleeing, are in conflict or obstructed.
- dissociative disorder — a mental disorder, as multiple personality, characterized by sudden temporary alteration in consciousness, identity, or motor behavior.
- distinctiveness ratio — the ratio of the relative frequency of some event in a given sample to that in the general population or another relevant sample
- first-dollar coverage — insurance that provides payment for the full loss up to the insured amount with no deductibles.
- food conversion ratio — a ratio expressing the weight of food required to produce a unit gain in the live weight of an animal
- fraudulent conversion — conversion committed with the intent to defraud
- give place to someone — to make room for or be superseded by someone
- great victoria desert — a desert in SW central Australia. 125,000 sq. mi. (324,000 sq. km).
- greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
- have the inside track — If you say that someone has the inside track, you mean that they have an advantage, for example special knowledge about something.
- keyboard send receive — (hardware) (KSR) Part of a designation for a hard-copy terminal, manufactured by Teletype Corporation. The KSR range were lower cost versions of the ASR models.
- lafcadio's adventures — French Les Caves du Vatican. a novel (1914) by André Gide.
- leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
- level of significance — significance level.
- motivational research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
- national park service — a division of the Department of the Interior, created in 1916, that administers national parks, monuments, historic sites, and recreational areas.
- negative prescription — the barring of adverse claims to property, etc, after a specified period of time has elapsed, allowing the possessor to acquire title
- nonrestrictive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
- nonviolent resistance — passive resistance, peaceful protest
- path coverage testing — (testing) Testing a program by examining which lines of executable code are visited (as in code coverage testing) and also the ways of getting to each line of code and the subsequent sequence of execution. Path coverage testing is the most comprehensive type of testing that a test suite can provide. It can find more bugs, especially those that are caused by data coupling. However, path coverage is hard and usually only used for small and/or critical sections of code.
- professional services — (job) A department of a supplier providing consultancy and programming manpower for the supplier's products.
- progressive education — any of various reformist educational philosophies and methodologies since the late 1800s, applied especially to elementary schools, that reject the rote recitation and strict discipline of traditional, single-classroom teaching, favoring instead more stimulation of the individual pupil as well as group discussion, more informality in the classroom, a broader curriculum, and use of laboratories, gymnasiums, kitchens, etc., in the school.
- public health service — the agency that is responsible for the health of the general public
- quantitative genetics — population genetics.
- radius of convergence — a positive number so related to a given power series that the power series converges for every number whose absolute value is less than this particular number.
- reverse transcriptase — a retrovirus enzyme that synthesizes DNA from viral RNA, the reverse of the usual DNA-to-RNA replication: used in genetic engineering to clone genes from RNA strands.
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