18-letter words containing a, l, t, o
- customer relations — Customer relations are the relationships that a business has with its customers and the way in which it treats them.
- cyclopean concrete — concrete containing stones larger than 6 inches (15 cm).
- data flow analysis — (programming) A process to discover the dependencies between different data items manipulated by a program. The order of execution in a data driven language is determined solely by the data dependencies. For example, given the equations 1. X = A + B 2. B = 2 + 2 3. A = 3 + 4 a data-flow analysis would find that 2 and 3 must be evaluated before 1. Since there are no data dependencies between 2 and 3, they may be evaluated in any order, including in parallel. This technique is implemented in hardware in some pipelined processors with multiple functional units. It allows instructions to be executed as soon as their inputs are available, independent of the original program order.
- daytime television — television broadcasts that are shown during the daytime rather than in the evening
- dead-letter office — an office where undeliverable letters were taken for storage
- dear john (letter) — a letter from one's fiancée or girlfriend breaking off an engagement or love affair, or from one's wife asking for a divorce
- death by chocolate — a very rich type of chocolate dessert or cake
- debt consolidation — the process of taking out a new loan (often secured on one's property) in order to pay off a number of existing debts
- declaration of war — a formal statement made by one country to another that a state of war now exists between them
- decompartmentalize — to remove excessive compartmentalization from (an organization)
- defense calculator — IBM 701
- deinstitutionalize — to discharge (a patient) as from a mental institution
- demilitarized zone — an area from which military presence or function has been removed
- departmental store — a department store.
- departure platform — a raised area at a railway station from which passengers can board trains prior to their departing
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation
- dia de los muertos — Day of the Dead.
- dialytic telescope — a type of achromatic telescope with a second correcting lens
- diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- dichloracetic acid — a highly corrosive acid. Formula: C2H2Cl2O2
- dictionary catalog — a library catalog having all its entries, including authors, titles, subjects, etc., in one general alphabetical sequence.
- digital audio tape — a cassette containing magnetic tape used for high-fidelity digital recording or playback of audio. Abbreviation: DAT.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- digital technology — the branch of scientific or engineering knowledge that deals with the creation and practical use of digital or computerized devices, methods, systems, etc.: advances in digital technology.
- digital television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
- digital video disc — Digital Versatile Disc
- dihydrotachysterol — a white, crystalline, water-insoluble sterol, C 28 H 46 O, derived from ergosterol: used chiefly in the treatment of hypoparathyroidism.
- dimensionalisation — Alternative spelling of dimensionalization.
- dimensionalization — The process of dimensionalizing.
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- diplomatic service — diplomatic corps
- diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
- directional signal — any of four signal lights on the front left, front right, rear left, and rear right of an automotive vehicle that, when actuated by the driver, flash in pairs on the side toward which a turn is to be made.
- disability pension — a pension paid to people who are unable to continue to work because of a disability
- display postscript — An extended form of PostScript permitting its interactive use with bitmap displays.
- disproportionality — not in proportion; disproportionate.
- disproportionately — not proportionate; out of proportion, as in size or number.
- distribution class — form class
- division algorithm — the theorem that an integer can be written as the sum of the product of two integers, one a given positive integer, added to a positive integer smaller than the given positive integer. Compare Euclidean algorithm.
- domestic appliance — a machine used for household tasks, for example, a washing machine, refrigerator, etc.
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- dragline excavator — a power shovel that operates by being dragged by cables at the end of an arm or jib: used for quarrying, opencast mining, etc
- dramatic monologue — a poetic form in which a single character, addressing a silent auditor at a critical moment, reveals himself or herself and the dramatic situation.
- drinking chocolate — sweetened cocoa powder
- dysfunctionalities — Plural form of dysfunctionality.
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- eastern meadowlark — any of several American songbirds of the genus Sturnella, of the family Icteridae, especially S. magna (eastern meadowlark) and S. neglecta (western meadowlark) having a brownish and black back and wings and a yellow breast, noted for their clear, tuneful song.
- ecma international — (body) (Formerly European Computer Manufacturers Association) An industry association founded in 1961 and dedicated to the standardisation of information and communication systems. ECMA edits standards and technical reports. All ECMA publications are available free of charge. The best known ECMA standard is ECMA 262, defining the scripting language ECMAScript.
- ejaculatio praecox — premature ejaculation during sexual intercourse