24-letter words containing c, h, i, r, a
- grand unification theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- graphical user interface — a software interface designed to standardize and simplify the use of computer programs, as by using a mouse to manipulate text and images on a display screen featuring icons, windows, and menus.
- grin like a cheshire cat — a constantly grinning cat in Lewis Carroll's Alice's Adventures in Wonderland.
- hardware circular buffer — (programming, hardware) digital signal processors which support hardware circular buffers automatically generate and increment pointers for memory accesses which wrap to the beginning of the buffer when its end is reached, thus saving the time and instructions otherwise needed to ensure that the address pointer stays within the boundary of the buffer, and speeding the execution of repetitive DSP algorithms.
- heart in the right place — If you say that someone's heart is in the right place, you mean that they are kind, considerate, and generous, although you may disapprove of other aspects of their character.
- hierarchical data format — (file format, data) (HDF) A library and multi-object file format for the transfer of graphical and numerical data between computeres. The freely available HDF distribution consists of the library, command line utilities, test suite source, Java interface, and the Java-based HDF Viewer (JHV). HDF supports several different data models, including multidimensional arrays, raster images, and tables. Each defines a specific aggregate data type and provides an API for reading, writing, and organising the data and metadata. New data models can be added by the HDF developers or users. HDF is self-describing, allowing an application to interpret the structure and contents of a file without any outside information. One HDF file can hold a mixture of related objects which can be accessed as a group or as individual objects. Users can create their own grouping structures called "vgroups". HDF files can be shared across most common platforms, including many workstations and high performance computers. An HDF file created on one computer can be read on a different system without modification.
- hierarchical file system — (file system) A file system in which the files are organised into a hierarchy. The nodes of the hierarchy are called directories while the leaves are the files themselves. See also root directory. Compare flat file system.
- high court of justiciary — the senior criminal court in Scotland, to which all cases of murder and rape and all cases involving heavy penalties are referred
- high performance fortran — (language) (HPF) A data parallel language extension to Fortran 90 which provides a portable programming interface for a wide variety of target platforms. The original HPF language specification was produced by the High Performance Fortran Forum, a broad consortium of industry and academia, which met regularly throughout 1992 and early 1993. HPF compilers are now available on most commonly-used computing systems, and users are beginning to gain first hand experience with this language. The Forum has continued to meet in order to address advanced topics.
- high performance routing — (networking) (HPR) Routing designed to work in conjunction with APPN Intermediate Session Routing (ISR) network nodes. HPR nodes perform many of the same functions as ISR nodes. For example, HPR nodes use the same method of calculating routes based on the Topology Routing Service database and class of service tables. HPR nodes also supports such APPN features as connection networks and support for parallel transmission groups (TGs). In the HPR architecture, both partner nodes must support HPR for RTP connections to take place between the nodes. If one node supports HPR and the partner node does not, then the link will support ISR functionality only.
- homolographic projection — an equal-area projection in which the proportion between regions of unequal area is correctly shown.
- hoop-petticoat narcissus — petticoat narcissus.
- human-computer interface — (software, hardware) (HCI) Any software or hardware that allows a user to interact with a computer. Examples are WIMP, command-line interpreter, or virtual reality. See also Human-Computer Interaction.
- ichthyophthirius-disease — ich.
- incomplete metamorphosis — insect development, as in the grasshopper and cricket, in which the change is gradual and characterized by the absence of a pupal stage. Compare complete metamorphosis.
- information architecture — the design and organization of an online resource, usually with regard to usability.
- instructional technology — (education) Design, development, use, management and evaluation of process and resources for learning. Instructional technology aims to promote the application of validated, practical procedures in the design and delivery of instruction. It is often defined either in terms of media and other technology used (e.g. audiovisual media and equipment and computers), or in terms of a systematic process which encompasses instructional design, development, delivery and evaluation.
- jewish american princess — JAP.
- kinetic theory of matter — a theory that matter is composed of small particles, all in random motion.
- laryngotracheobronchitis — A respiratory disease, a form of croup.
- laugh in a person's face — to show open contempt or defiance towards a person
- le chatelier's principle — the principle that if a system in chemical equilibrium is subjected to a disturbance it tends to change in a way that opposes this disturbance
- leave much to be desired — be inadequate
- mach interface generator — (tool, programming) (MIG) An implementation of a subset of Matchmaker that generates C and C++ remote procedure call interfaces for interprocess communication between Mach tasks.
- macintosh user interface — (operating system) The graphical user interface used by Apple Computer's Macintosh family of personal computers, based on graphical representations of familiar office objects (sheets of paper, files, wastepaper bin, etc.) positioned on a two-dimensional "desktop" workspace. Programs and data files are represented on screen by small pictures (icons). An object is selected by moving a mouse over the real desktop which correspondingly moves the pointer on screen. When the pointer is over an icon on screen, the icon is selected by pressing the button on the mouse. A hierarchical file system is provided that lets a user "drag" a document (a file) icon into and out of a folder (directory) icon. Folders can also contain other folders and so on. To delete a document, its icon is dragged into a trash can icon. For people that are not computer enthusiasts, managing files on the Macintosh is easier than using the MS-DOS or Unix command-line interpreter. The Macintosh always displays a row of menu titles at the top of the screen. When a mouse button is pressed over a title, a pull-down menu appears below it. With the mouse button held down, the option within the menu is selected by pointing to it and then releasing the button. Unlike the IBM PC, which, prior to Microsoft Windows had no standard graphical user interface, Macintosh developers almost always conform to the Macintosh interface. As a result, users are comfortable with the interface of a new program from the start even if it takes a while to learn all the rest of it. They know there will be a row of menu options at the top of the screen, and basic tasks are always performed in the same way. Apple also keeps technical jargon down to a minimum. Although the Macintosh user interface provides consistency; it does not make up for an application program that is not designed well. Not only must the application's menus be clear and understandable, but the locations on screen that a user points to must be considered. Since the mouse is the major selecting method on a Macintosh, mouse movement should be kept to a minimum. In addition, for experienced typists, the mouse is a cumbersome substitute for well-designed keyboard commands, especially for intensive text editing.
- magnetothermoelectricity — thermoelectricity induced or affected by a magnetic field.
- maker interchange format — (MIF) A language used to describe a FrameMaker document in a text file. MIF is used to exchange information between FrameMaker and other applications.
- mathematical probability — the probability of an event consisting of n out of m possible equally likely occurrences, defined to be n/m
- nalbuphine hydrochloride — an opiate drug used as a painkiller
- national weather service — an agency of the National Oceanic and Atmospheric Administration that is responsible for meteorological observations, weather forecasts, storm and flood warnings, etc.
- neutrosophic probability — (logic) An extended form of probability based on Neutrosophy, in which a statement is held to be t true, i indeterminate, and f false, where t, i, f are real values from the ranges T, I, F, with no restriction on T, I, F or the sum n=t+i+f.
- nongonococcal urethritis — a widespread sexually transmitted infection of the urethra, caused by the parasite Chlamydia trachomatis, or the mycoplasm Ureaplasma urealyticum, characterized in males by painful urination and discharge from the penis and in females by frequent, painful urination and cervical erosion. Abbreviation: NGU.
- north equatorial current — a westward-flowing ocean current occurring N of the equator in the Atlantic and Pacific oceans.
- on the right/wrong track — If you are on the right track, you are acting or progressing in a way that is likely to result in success. If you are on the wrong track, you are acting or progressing in a way that is likely to result in failure.
- open system architecture — (operating system) (OSA) A competitor to IBM's SNA.
- optical character reader — the process or technology of reading data in printed form by a device (optical character reader) that scans and identifies characters. Abbreviation: OCR.
- orographic precipitation — precipitation caused by the lifting of moist air over a mountain barrier.
- parallel virtual machine — (parallel, networking, tool) (PVM) 1. A software system designed to allow a network of heterogeneous machines to be used as a single distributed parallel processor. PVM was developed by the University of Tennessee, The Oak Ridge National Laboratory and the Emory University. 2. The intermediate language used by the Gambit compiler for Scheme.
- parochial church council — the ruling body of a parish, composed of the vicar, the churchwardens, and elected laypersons.
- photomechanical transfer — a method of producing photographic prints or offset printing plates from paper negatives by a chemical transfer process rather than by exposure to light
- physiological atmosphere — ecosphere.
- pluck sth out of the air — If you say that someone plucks a figure, name, or date out of the air, you mean that they say it without thinking much about it before they speak.
- polychlorinated biphenyl — PCB.
- private health insurance — insurance against the need for medical treatment as a private patient
- private-key cryptography — (cryptography) As opposed to public-key cryptography, a cryptographic method in which the same key is used to encrypt and decrypt the message. Private-key algorithms include the obsolescent Data Encryption Standard (DES), triple-DES (3DES), the Advanced Encryption Standard (AES), also known as Rijndael, Blowfish, Twofish RC2, RC4, RC5 and RC6. A problem with private-key cryptography is that the sender and the recipient of the message must agree on a common key via some alternative secure channel.
- psychopathic personality — an antisocial personality characterized by the failure to develop any sense of moral responsibility and the capability of performing violent or antisocial acts
- quadrature of the circle — the insoluble problem of constructing, by the methods of Euclidean geometry, a square equal in area to a given circle.
- quantitative inheritance — the process in which the additive action of numerous genes results in a trait, as height, showing continuous variability.
- quinacrine hydrochloride — Atabrine
- recharge one's batteries — If you recharge a battery, you put an electrical charge back into the battery by connecting it to a machine that draws power from another source of electricity.