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18-letter words containing n, a, d, s

  • data transfer rate — (communications)   (Or "throughput, data rate", "transmission rate") The amount of data transferred in one direction over a link divided by the time taken to transfer it, usually expressed in bits per second (bps), bytes per second (Bps) or baud. The link may be anything from an interface to a hard disk to a radio transmission from a satellite. Where data transfer is not continuous throughout the given time interval, the data transfer rate is thus an average rate that will be lower than the peak rate. The peak or maximum possible rate may itself be lower than the capacity of the communication channel if the channel is shared, or part of the signal is not considered as data, e.g. checksum or routing information. When applied to data rate, the multiplier prefixes "kilo-", "mega-", "giga-", etc. (and their abbreviations, "k", "M", "G", etc.) always denote powers of 1000. For example, 64 kbps is 64,000 bits per second. This contrasts with units of storage where they stand for powers of 1024, e.g. 1 KB = 1024 bytes. The other important characteristic of a channel is its latency. The bandwidth of a channel determines the data transfer rate but is a different characteristic, measured in Hertz. [Relationship?]
  • daytime television — television broadcasts that are shown during the daytime rather than in the evening
  • dead as a doornail — completely dead
  • dead man's fingers — a soft coral, Alcyonium digitatum, with long finger-like polyps
  • dead-man's fingers — any of various fungi, sponges, plant roots, animal parts, etc., having fingerlike projections and a pale or dull color, as the gray-black woodland fungus Xylaria polymorpha or the whitish spongy gills of a food crab.
  • dead-stick landing — Aeronautics, Aerospace. a landing of an airplane or space vehicle with the engine cut off.
  • deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
  • 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
  • dechristianization — The act of dechristianizing; the systematic removal of Christianity or Christian elements.
  • deep-sea fisherman — a person who takes part in deep-sea fishing
  • defense calculator — IBM 701
  • deficiency disease — any condition, such as pellagra, beriberi, or scurvy, produced by a lack of vitamins or other essential substances
  • deinstitutionalize — to discharge (a patient) as from a mental institution
  • delmarva peninsula — a peninsula of the northeast US, between Chesapeake Bay and the Atlantic
  • demand liabilities — the assets of a financial institution that are demandable by depositors
  • demorgan's theorem — (logic)   A logical theorem which states that the complement of a conjunction is the disjunction of the complements or vice versa. In symbols: not (x and y) = (not x) or (not y) not (x or y) = (not x) and (not y) E.g. if it is not the case that I am tall and thin then I am either short or fat (or both). The theorem can be extended to combinations of more than two terms in the obvious way. The same laws also apply to sets, replacing logical complement with set complement, conjunction ("and") with set intersection, and disjunction ("or") with set union. A (C) programmer might use this to re-write if (!foo && !bar) ... as if (!(foo || bar)) ... thus saving one operator application (though an optimising compiler should do the same, leaving the programmer free to use whichever form seemed clearest).
  • departmental store — a department store.
  • desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation
  • destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
  • detective sergeant — a police officer who investigates crime and who ranks above a detective constable but below a detective inspector
  • devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
  • diabetes insipidus — a disorder of the pituitary gland causing excessive thirst and excretion of large quantities of dilute urine
  • diagnostic testing — Diagnostic testing is the testing of a vehicle, or one of its systems or parts, in order to identify why it is not working properly.
  • diaminofluorescein — (organic compound) A fluorescein into which two amino groups have been substituted.
  • didaskaleinophobia — The fear of going to school.
  • dietary supplement — a substance taken in addition to what you eat in order to promote health
  • digital humanities — (used with a singular verb) the study of literature, philosophy, etc., as facilitated by computer technology or digital media: Digital humanities uses data analysis to find patterns in large bodies of text. the set of methodologies used in such scholarship.
  • digital signatures — digital signature
  • digital television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
  • dimensionalisation — Alternative spelling of dimensionalization.
  • dimensionalization — The process of dimensionalizing.
  • 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
  • discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
  • discourse analysis — the study of the rules or patterns characterizing units of connected speech or writing longer than a sentence.
  • disenfranchisement — to disfranchise.
  • dishwashing liquid — Dishwashing liquid is a thick soapy liquid which you add to hot water to clean dirty dishes.
  • disidentifications — Plural form of disidentification.
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • disproportionality — not in proportion; disproportionate.
  • disproportionately — not proportionate; out of proportion, as in size or number.
  • disproportionation — the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C 2 H 4 →C 2 H 6 +C 2 H 2 .
  • distance education — education in which students receive instruction over the Internet, from a video, etc., instead of going to school.
  • distinguishability — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
  • distracted driving — driving a vehicle while engaging in an activity that has the potential to distract the driver from the task of driving: Bans on cell phone use in cars will help to reduce the dangers of distracted driving.
  • distribution class — form class
  • distribution ratio — the ratio of concentrations of a solute distributed between two immiscible solvents in contact with each other, as iodine in water and chloroform
  • divine inspiration — insight provided by higher power
  • 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.
  • division of labour — a system of organizing the manufacture of an article in a series of separate specialized operations, each of which is carried out by a different worker or group of workers
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