24-letter words containing a, d, l, i, t
- ductal carcinoma in situ — a form of breast cancer originating in the breast itself rather than spreading from another site
- edetate calcium disodium — a chelating agent, C 10 H 12 CaN 2 Na 2 O 8 , used in medicine to treat lead poisoning.
- educational psychologist — a person trained in educational psychology
- electrocardiographically — By means of electrocardiography.
- electronic whiteboarding — audiographic teleconferencing
- endotracheal anaesthesia — a method of administering gaseous anaesthetics to animals through a tube inserted into the trachea
- environmentally friendly — that has no or the least possible impact on the environment
- exponential distribution — a continuous single-parameter distribution used esp when making statements about the length of life of certain materials or waiting times between randomly occurring events. Its density function is p(x) = λe–λx for positive λ and nonnegative x, and it is a special case of the gamma distribution
- failure-directed testing — (programming) (Or "heuristics testing") Software testing based on the knowledge of the types of errors made in the past that are likely for the system under test.
- federal reserve district — the district served by a certain Federal Reserve Bank.
- federal trade commission — FTC.
- floating decimal (point) — a decimal (point) whose position is not fixed
- floating point underflow — underflow
- flue gas desulfurization — Flue gas desulfurization is the removal of pollutants containing sulfur from flue gas.
- geographical determinism — the theory that human activity is determined by geographical conditions
- glycogen storage disease — any of several inherited disorders of glycogen metabolism that result in excess accumulation of glycogen in various organs of the body.
- greater london authority — local government body of UK capital
- ground-fault interrupter — a circuit breaker that senses currents caused by ground faults and quickly shuts off power before damage can occur to generating equipment.
- guaranteed annual income — Also called guaranteed income. compensation provided by the government to any family or individual whose annual income falls below a specified level.
- 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.
- hit the nail on the head — a slender, typically rod-shaped rigid piece of metal, usually in any of numerous standard lengths from a fraction of an inch to several inches and having one end pointed and the other enlarged and flattened, for hammering into or through wood, other building materials, etc., as used in building, in fastening, or in holding separate pieces together.
- implicit differentiation — a method of finding the derivative of an implicit function by taking the derivative of each term with respect to the independent variable while keeping the derivative of the dependent variable with respect to the independent variable in symbolic form and then solving for that derivative.
- independent logical file — (database) (ILF) One kind of dynamic database management system. Examples of ILF databases are INQUIRE, ADABAS, NOMAD, FOCUS and DATACOM.
- industrial correspondent — a journalist who specializes in reporting the industrial news
- interlocking directorate — a corporate directorate that includes one or more members who serve simultaneously in the directorates of other corporations.
- intermediate-level waste — radioactive waste material, such as reactor and processing-plant components, that is solidified before being mixed with concrete and stored in steel drums in deep mines or beneath the seabed in concrete chambers
- internal auditory meatus — the canal extending through the petrous portion of the temporal bone, through which the glossopharyngeal nerve, the facial nerve, and the auditory nerve and artery pass.
- international morse code — a form of Morse code used in international radiotelegraphy.
- interventional radiology — an application of radiology that enables minimally invasive surgery to be performed with the aid of simultaneous radiological imaging of the field of operation within the body
- irritable bowel syndrome — any combination of common disturbances of the bowel, as diarrhea or constipation, occurring with abdominal pain, sometimes accompanied by psychological stress. Abbreviation: IBS.
- knowledge representation — The subfield of artificial intelligence concerned with designing and using systems for storing knowledge - facts and rules about some subject. A body of formally represented knowledge is based on a conceptualisation - an abstract view of the world that we wish to represent. In order to manipulate this knowledge we must specify how the abstract conceptualisation is represented as a concrete data structure. An ontology is an explicit specification of a conceptualisation.
- knowledge sharing effort — (project) An ARPA project developing techniques and methods for building large-scale knowledge bases which are sharable and reusable.
- lady washington geranium — show geranium.
- land of the midnight sun — any of those countries containing land within the Arctic Circle where there is a midnight sun in midsummer, especially Norway, Sweden, or Finland.
- least common denominator — the smallest number that is a common denominator of a given set of fractions.
- leave much to be desired — be inadequate
- licensed practical nurse — a person who has graduated from an accredited school of nursing and has become licensed to provide basic nursing care under the supervision of a physician or registered nurse. Abbreviation: LPN.
- like a red rag to a bull — If you describe something as a red rag to a bull, you mean that it is certain to make a particular person or group very angry.
- linear (induction) motor — an electric motor that produces thrust in a direct line, as distinguished from the rotary motion produced by a rotary engine, by the interaction of a moving magnetic field and the current induced by the field
- liquid components of gas — Liquid components of gas are associated hydrocarbons in natural gas, which include ethane, propane, and butane.
- lithium aluminum hydride — a white powder, LiAlH 4 , used chiefly as a chemical reducing agent, especially in pharmaceutical and perfume manufacturing.
- longitudinal coefficient — the ratio of the immersed volume of a hull to the product obtained by multiplying its length on the water line by the immersed area of the midship transverse section, all assuming a given depth of immersion of the hull.
- low voltage differential — (hardware) (LVD) A method of driving SCSI cables that will be formalised in the SCSI-3 specifications. LVD uses less power than the current differential drive (HVD), is less expensive and will allow the higher speeds of Ultra-2 SCSI. LVD requires 3.3 Volts DC instead of 5 Volts DC for HVD.
- machine independent sail — (MAINSAIL) From XIDAK, Palo Alto CA, +1 (415) 855 9271.
- mediterranean flour moth — a small cosmopolitan moth, Anagasta kuehniella, whose larvae damage stored foodstuffs, as grain and flour.
- medium-scale integration — MSI.
- multiple-valued function — function (def 4b).
- national war labor board — the board (1942–45) that mediated and arbitrated labor disputes. Abbreviation: NWLB, WLB.
- near field communication — a short-range wireless communication system that uses radio waves to enable a phone or other mobile device to interact with another device or card reader: Near Field Communication essentially lets your phone replace your credit cards. Abbreviation: NFC.
- negative acknowledgement — 1. (character) (NAK) The mnemonic for ASCII character 21. Sometimes used as the response to receipt of a corrupted packet of information. Opposite of acknowledgement. 2. (communications) (NAK) Any message transmitted to indicate that some data has been received incorrectly, for example it may have a checksum or message length error. A NAK message allows the sender to distinguish a message which has been received in a corrupted state from one which is not received at all. An alternative is to use only ACK messages, in which case the non-receipt of an ACK after a certain time is counted as a NAK but gives no information about the integrity of the communications channel. See also ACK.