22-letter words containing a, c, d, i, n, o
- ketamine hydrochloride — a powerful anesthetic, C13H16ClNO·HCl, used in surgery
- large magellanic cloud — a satellite galaxy of our own Milky Way galaxy, appearing as a hazy cloud in the southern constellations Dorado and Mensa.
- left-handed compliment — an ambiguous compliment
- linear induction motor — an electric motor in which a movable part moves in a straight line, with power being supplied by a varying magnetic field set up by a fixed part of the system, as a metal rail on the ground.
- lower canada rebellion — an uprising of 1837, quickly crushed by the British militia, against the British colonial administration in Quebec.
- lunar excursion module — lunar module. Abbreviation: LEM.
- magnetic dipole moment — a measure of the magnetic strength of a magnet or current-carrying coil, expressed as the torque per unit magnetic-flux density produced when the magnet or coil is set with its axis perpendicular to the magnetic field
- mathematical induction — induction (def 5).
- modified american plan — (in hotels) a system of paying a single fixed rate that covers room, breakfast, and one other meal, usually dinner. Abbreviation: MAP.
- molecular distillation — a vacuum distillation in which the molecules of the distillate reach the condenser before colliding with one another.
- most significant digit — the digit farthest to the left in a number. Abbreviation: MSD.
- much ado about nothing — a comedy (1598?) by Shakespeare.
- national semiconductor — (company) A semiconductor manufacturer, responsible for the SC/MP, National Semiconductor 16000 and National Semiconductor 32000 series of microprocessors.
- network interface card — network interface controller
- network node interface — (networking) (NNI) The ATM Forum's specification for connections between network nodes. NNI makes network routing possible. It typically refers to backbone trunk connections between ATM switching equipment. See also: UNI.
- nitrohydrochloric acid — aqua regia.
- nodal switching system — (NSS) Main routing nodes in the NSFnet backbone.
- nominal semidestructor — (abuse) Slang for "National Semiconductor", found among other places in the 4.3BSD networking sources. During the late 1970s to mid-1980s this company marketed a series of microprocessors including the National Semiconductor 16000 and National Semiconductor 32000. At one point early in the great microprocessor race, the specs on these chips made them look like serious competition for the rising Intel 80x86 and Motorola 680x0 series. Unfortunately, the actual parts were notoriously flaky and never implemented the full instruction set promised in their literature, apparently because the company couldn't get any of the mask steppings to work as designed. They eventually sank without trace, joining the Zilog Z8000 and a few even more obscure also-rans in the graveyard of forgotten microprocessors.
- non-euclidean geometry — geometry based upon one or more postulates that differ from those of Euclid, especially from the postulate that only one line may be drawn through a given point parallel to a given line.
- nonterminating decimal — a decimal numeral that does not end in an infinite sequence of zeros (contrasted with terminating decimal).
- normal order reduction — Under this evaluation strategy an expression is evaluated by reducing the leftmost outermost redex first. This method will terminate for any expression for which termination is possible, whereas applicative order reduction may not. This method is equivalent to passing arguments unevaluated because arguments are initially to the right of functions applied to them. See also computational adequacy theorem.
- object-oriented pascal — Object Pascal
- obtaining by deception — the offence of dishonestly obtaining the property of another by some deception or misrepresentation of facts
- office of fair trading — a government department established in the UK in 1973, which acts as an economic regulator, responsible for ensuring fairness in consumer protection and competition law
- para-aminobenzoic acid — part of the folic acid molecule, a white or yellowish, crystalline, slightly water-soluble solid, C 7 H 7 NO 2 , the para isomer of aminobenzoic acid: used chiefly in the manufacture of dyes and pharmaceuticals and in sunscreens to protect against ultraviolet light. Abbreviation: PABA.
- paranoid schizophrenia — severe psychiatric disorder
- pavlovian conditioning — conditioning (def 2).
- picture of dorian gray — a novel (1891) by Oscar Wilde.
- planck's radiation law — the law that energy associated with electromagnetic radiation, as light, is composed of discrete quanta of energy, each quantum equal to Planck's constant times the corresponding frequency of the radiation: the fundamental law of quantum mechanics.
- play one's cards right — a usually rectangular piece of stiff paper, thin pasteboard, or plastic for various uses, as to write information on or printed as a means of identifying the holder: a 3″ × 5″ file card; a membership card.
- poor richard's almanac — an almanac (1732–58) written and published by Benjamin Franklin.
- post office department — former name of United States Postal Service.
- potassium ferricyanide — a bright-red, crystalline, water-soluble, poisonous solid, K 3 Fe(CN) 6 , used chiefly in the manufacture of pigments, as Prussian blue, and of paper, especially blueprint paper.
- potassium ferrocyanide — a lemon-yellow, crystalline, water-soluble solid, K 4 Fe(CN) 6 ⋅3H 2 O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.
- prince of wales island — the largest island in the Alexander Archipelago, in SE Alaska. 1500 sq. mi. (3990 sq. km).
- principal ideal domain — a commutative integral domain with multiplicative identity in which every ideal is principal.
- productivity agreement — an agreement whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
- programmed instruction — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
- public domain software — public domain
- public limited company — A public limited company is the same as a public company. The abbreviation plc is used after such companies' names.
- quantum chromodynamics — a quantum field theory that describes quarks and gluons and their interactions, with the color of the quarks playing a role analogous to that of electric charge. Abbreviation: QCD. Also called chromodynamics. Compare color (def 18).
- rabbit-eared bandicoot — any of several bandicoots of the genus Macrotis, especially M. lagotis, of the Australian region, having leathery, rabbitlike ears and a long, pointed snout: an endangered species.
- radio direction finder — a navigational aid establishing a fix by means of the bearings of two known radio stations. Abbreviation: RDF.
- range of accommodation — the range of distance over which an object can be accurately focused on the retina by accommodation of the eye.
- rapid deployment force — a U.S. military organization consisting of one Marine division and four Army divisions, established in 1979 to respond quickly to any distant threat to national interests.
- received pronunciation — the pronunciation of British English considered to have the widest geographical distribution and the fewest regional peculiarities, originally the pronunciation of educated speakers in southern England and traditionally that used in the public schools and at Oxford and Cambridge universities, adopted by many speakers elsewhere in England and widely used in broadcasting. Abbreviation: RP.
- rectangular coordinate — Usually, rectangular coordinates. either of two Cartesian coordinates in which the axes meet at right angles.
- reproductive isolation — the conditions, as physiological or behavioral differences or geographical barriers, that prevent potentially interbreeding populations from cross-fertilization.
- residents' association — A residents' association is an organization of people who live in a particular area. Residents' associations have meetings and take action to make the area more pleasant to live in.
- respond to a complaint — If you respond to a complaint, you answer a customer who expressed their dissatisfaction with something.