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21-letter words containing o, n, e, d

  • differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
  • differential operator — a function, usually expressed as a polynomial, that indicates linear combinations of the derivatives of the expression on which it operates.
  • differential quotient — derivative (def 6).
  • differential topology — the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms.
  • differential-quotient — something that has been derived.
  • diffusion coefficient — the rate at which a diffusing substance is transported between opposite faces of a unit cube of a system when there is unit concentration difference between them
  • disassortative mating — the reproductive pairing of individuals that have traits more dissimilar than would likely be the case if mating were random (contrasted with assortative mating).
  • discretionary account — an account in which the stockbroker is allowed complete control over the purchase and sale of securities on the customer's behalf.
  • disk operating system — DOS.
  • disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
  • distinctiveness ratio — the ratio of the relative frequency of some event in a given sample to that in the general population or another relevant sample
  • distinguished-looking — having a dignified and attractive appearance
  • divine right of kings — the doctrine that the right of rule derives directly from God, not from the consent of the people.
  • document object model — (hypertext, language, web)   A W3C specification for application program interfaces for accessing the content of HTML and XML documents.
  • double predestination — the doctrine that God has foreordained both those who will be saved and those who will be damned.
  • double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
  • downhole safety valve — A downhole safety valve is a piece of safety equipment used inside a well, which isolates wellbore pressure and fluid if something bad happens.
  • draft once reuse many — (jargon)   (DORUM) Reusing parts of a document to produce parts of an entirely new document. The term normally refers to text documents but the practise is equally common in programming.
  • drop in someone's lap — give someone the responsibility of
  • drop the handkerchief — a children's game in which all the players but one stand in a circle facing inward, while that one player stealthily drops a handkerchief behind a player in the circle who must pursue and attempt to catch the one who dropped the handkerchief before the latter reaches the vacated place.
  • duccio di buoninsegna — c1255–1319? Italian painter.
  • dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
  • dynamic drive overlay — (storage, software)   (DDO) Software to allow a system BIOS that does not support Logical Block Addressing to access drives larger than 528 MB. The alternatives are to update the system BIOS or install an EIDE controller card with a suitable on-board BIOS.
  • easier said than done — difficult to do
  • eccles-jordan circuit — flip-flop
  • educational sociology — the application of sociological principles and methods to the solution of problems in an educational system.
  • electromagnetic field — a field of force associated with a moving electric charge equivalent to an electric field and a magnetic field at right angles to each other and to the direction of propagation
  • endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
  • enhanced oil recovery — any of several techniques that make it possible to recover more oil than can be obtained by natural pressure, such as the injection of fluid or gases into an oilfield to force more oil to the surface
  • enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
  • environmental studies — a university course studying the environment and related issues
  • every nook and cranny — If you talk about every nook and cranny of a place or situation, you mean every part or every aspect of it.
  • extensible vax editor — (text, tool)   (EVE) A DEC product implemented using DEC's Text Processing Utility (TPU).
  • faculty board meeting — a meeting of the governing body of a faculty
  • false memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
  • false-memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
  • flip someone the bird — give someone the finger (see phrase under finger)
  • food conversion ratio — a ratio expressing the weight of food required to produce a unit gain in the live weight of an animal
  • food standards agency — the full form of FDA
  • foot-in-mouth disease — the habit of making inappropriate, insensitive, or imprudent statements.
  • foreground processing — a type of processing that supports interaction between interactive and batch operations
  • foreign correspondent — a correspondent, as for a periodical, assigned to send back articles and news dispatches from a foreign country for publication.
  • forward exchange rate — the exchange rate of a currency to be delivered at a later date
  • fragmentation grenade — a grenade with a heavy metal casing that shatters, on exploding, into fragments that travel at high speed and with great force.
  • frankfort on the oder — a city in NE Germany, on the Oder River.
  • fraudulent conversion — conversion committed with the intent to defraud
  • free alongside vessel — (of a shipment of goods) delivered to the dock without charge to the buyer, but excluding the cost of loading onto the vessel
  • freedom of expression — the unrestrained right to voice ideas, opinions, etc
  • french fried potatoes — a more formal name for chips
  • from dan to beersheba — from one end of Israel to the other: Judg. 20:1
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