20-letter words containing a, c, i, d, t, r
- distributive lattice — (theory) A lattice for which the least upper bound (lub) and greatest lower bound (glb) operators distribute over one another so that a lub (b glb c) == (a lub c) glb (a lub b) and vice versa. ("lub" and "glb" are written in LateX as \sqcup and \sqcap).
- district of columbia — a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 69 sq. mi. (179 sq. km). Abbreviation: DC (for use with zip code), D.C.
- diverticular disease — any disease of the colon involving the presence of diverticula
- documentary evidence — law: written
- double-trailer truck — tandem trailer (def 1).
- education department — the department of a local authority that is concerned with education, or the government department concerned with education
- electoral boundaries — the way that a country or area is divided for the purposes of voting in an election
- electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
- electrohydrodynamics — (physics) the study of the dynamics of electrically conducting fluid.
- elementary education — the first six to eight years of a child's education
- factor of production — any instrument, agent, etc., employed in the production of goods and services.
- federal constitution — Constitution of the United States.
- file descriptor leak — (programming) (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
- fission-track dating — the dating of samples of minerals by comparing the tracks in them by fission fragments of the uranium nuclei they contain, before and after irradiation by neutrons
- fixed action pattern — a highly stereotyped pattern of behavior that is characteristic of a particular species.
- fixed-price contract — a contract in which the price is preset and invariable, regardless of the actual costs of production.
- fixed-rate financing — a loan system in which the amount paid back does not fluctuate according to interest rated
- flight data recorder — a recording device that records relevant data during an aircraft's flight
- for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- frequency modulation — FM.
- fundamental particle — elementary particle.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- harvard architecture — (architecture) A computer architecture in which program instructions are stored in different memory from data. Each type of memory is accessed via a separate bus, allowing instructions and data to be fetched in parallel. Contrast: von Neumann architecture.
- heteropolysaccharide — (carbohydrate) any polysaccharide formed from two or more different kinds of monosaccharide.
- hit-and-run accident — a motor-vehicle accident in which the driver leaves the scene without stopping to give assistance, inform the police, etc
- horizontal microcode — (processor) Microcode using horizontal encoding.
- hydraulic fracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
- hyperadrenocorticism — Cushing's syndrome.
- imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
- in bad circumstances — (of a person) in a bad financial situation
- in flagrante delicto — Law. in the very act of committing the offense.
- in-service education — training and education given to employed teachers throughout their career
- incorporated company — a legally constituted company
- incremental recorder — a device for recording data as it is generated, usually on paper tape or magnetic tape, and feeding it into a computer
- indian cucumber root — a North American plant, Medeola virginiana, of the lily family, having whorled leaves, nodding, greenish-yellow flowers, and an edible root.
- indicated horsepower — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
- industrial democracy — control of an organization by the people who work for it, esp by workers holding positions on its board of directors
- industrial insurance — industrial life insurance.
- industrial sociology — the sociological study of social relationships and social structures in business settings.
- intermediate section — The intermediate section is the section of the borehole after the top hole, which has more consolidated rock.
- international candle — candle (def 3b).
- into/in cold storage — If you put an idea or plan into cold storage or in cold storage, you delay it for a while rather than acting on it as you originally intended.
- la canada-flintridge — a town in SW California.
- lafayette escadrille — a contingent of American aviators who in 1916 served as volunteers (Escadrille Américaine) in the French air force and in 1918 became the 103rd Pursuit Squadron of the U.S. Army.
- law of contradiction — the law that a proposition cannot be both true and false or that a thing cannot both have and not have a given property.
- lieutenant commander — a commissioned officer ranking next below a commander and next above a lieutenant.
- macular degeneration — degeneration of the central portion of the retina, resulting in a loss of sharp vision.
- magnetic card reader — a device that scans and interprets information from a card with a magnetic stripe
- magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.