22-letter words containing u, n, r, e, t

make one's mouth water — a transparent, odorless, tasteless liquid, a compound of hydrogen and oxygen, H 2 O, freezing at 32°F or 0°C and boiling at 212°F or 100°C, that in a more or less impure state constitutes rain, oceans, lakes, rivers, etc.: it contains 11.188 percent hydrogen and 88.812 percent oxygen, by weight.
manner of articulation — the degree of obstruction or the type of channel imposed upon the passage of air at a given place of articulation, as denoted by such categories as stop, fricative, nasal, and semivowel.
manuel estrada cabrera — Manuel [mah-nwel] /mɑˈnwɛl/ (Show IPA), 1857–1924, Guatemalan politician: president 1898–1920.
martin luther king day — the third Monday in January, a legal holiday in some states of the U.S., commemorating the birthday (Jan. 15) of Martin Luther King, Jr.
mcculloch-pitts neuron — (artificial intelligence) The basic building block of artificial neural networks. It receives one or more inputs and produces one or more identical outputs, each of which is a simple non-linear function of the sum of the inputs to the neuron. The non-linear function is typically a threshhold or step function which is usually smoothed (i.e. a sigmoid) to facilitate learning.
memory management unit — (hardware, memory management) (MMU, "Paged Memory Management Unit", PMMU) A hardware device or circuit that supports virtual memory and paging by translating virtual addresses into physical addresses. The virtual address space (the range of addresses used by the processor) is divided into pages, whose size is 2^N, usually a few kilobytes. The bottom N bits of the address (the offset within a page) are left unchanged. The upper address bits are the (virtual) page number. The MMU contains a page table which is indexed (possibly associatively) by the page number. Each page table entry (PTE) gives the physical page number corresponding to the virtual one. This is combined with the page offset to give the complete physical address. A PTE may also include information about whether the page has been written to, when it was last used (for a least recently used replacement algorithm), what kind of processes (user mode, supervisor mode) may read and write it, and whether it should be cached. It is possible that no physical memory (RAM) has been allocated to a given virtual page, in which case the MMU will signal a "page fault" to the CPU. The operating system will then try to find a spare page of RAM and set up a new PTE to map it to the requested virtual address. If no RAM is free it may be necessary to choose an existing page, using some replacement algorithm, and save it to disk (this is known as "paging"). There may also be a shortage of PTEs, in which case the OS will have to free one for the new mapping. In a multitasking system all processes compete for the use of memory and of the MMU. Some memory management architectures allow each process to have its own area or configuration of the page table, with a mechanism to switch between different mappings on a process switch. This means that all processes can have the same virtual address space rather than require load-time relocation. An MMU also solves the problem of fragmentation of memory. After blocks of memory have been allocated and freed, the free memory may become fragmented (discontinuous) so that the largest contiguous block of free memory may be much smaller than the total amount. With virtual memory, a contiguous range of virtual addresses can be mapped to several non-contiguous blocks of physical memory. In early designs memory management was performed by a separate integrated circuit such as the MC 68851 used with the Motorola 68020 CPU in the Macintosh II or the Z8015 used with the Zilog Z80 family of processors. Later CPUs such as the Motorola 68030 and the ZILOG Z280 have MMUs on the same IC as the CPU.
middle-distance runner — someone who runs races of a length between the sprints and the distance events, esp the 800 metres and the 1500 metres
miniature bull terrier — one of an English breed of small muscular dogs resembling a smaller version of a standard bull terrier, with a short, flat, harsh coat of glossy white or white with brindle patches.
molecular distillation — a vacuum distillation in which the molecules of the distillate reach the condenser before colliding with one another.
mountain standard time — one of the standard times used in North America, seven hours behind Greenwich Mean Time
multiplicative inverse — reciprocal (def 9).
mutton dressed as lamb — If you describe a woman as mutton dressed as lamb, you are criticizing her for trying to look younger than she really is, in a way that you consider unattractive.
nassella tussock board — one of many local statutory organizations set up in different regions of New Zealand to eradicate the invasive nassella tussock weed
national semiconductor — (company) A semiconductor manufacturer, responsible for the SC/MP, National Semiconductor 16000 and National Semiconductor 32000 series of microprocessors.
netherlands new guinea — a former name of Irian Jaya.
nickel-cadmium battery — a storage battery, with an alkaline electrolyte, having nickel oxide as the positive element and cadmium as the negative.
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-constructive proof — (logic) (Or "existence proof") A proof that something exists that does not provide an example of that thing or a method for finding an example. (A constructive proof does provide such an example or method). For example, for any pair of finite real numbers n < 0 and p > 0 there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A non-constructive proof might proceed by observing that as k changes continuously from 0 to 1, f(k) changes continuously from n to p and, since they lie either side of zero, f(k) must pass through zero for some intermediate value of k. This proof does not tell us what that value of k is, only that it exists.
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.
non-maskable interrupt — (NMI) An IRQ 7 on the PDP-11 or 680x0 or the NMI line on an 80x86. In contrast with a priority interrupt (which might be ignored, although that is unlikely), an NMI is *never* ignored.
non-restrictive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
nondestructive testing — any of several methods of detecting flaws in metals without causing damage. The most common techniques involve the use of X-rays, gamma rays, and ultrasonic vibrations
nonspecific urethritis — nongonococcal urethritis.
nonspecular reflection — the diffuse reflection of sound or light waves
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.
north atlantic current — an ocean current flowing NE toward the British Isles, formed by the convergence of the Gulf Stream and the Labrador Current SE of Newfoundland.
object-oriented turing — (language) An extension of Turing and a replacement for Turing Plus by R.C. Holt <[email protected]>, U Toronto, 1991. Object-Oriented Turing supports imperative programming, object-oriented programming and concurrent programming. It has modules, classes, single inheritance, processes, exception handling and optional machine-dependent programming. There is an integrated environment under the X Window System and a demo version. Versions exist for Sun-4, MIPS, RS-6000 and others. E-mail: <[email protected]>.
obstruction of justice — a criminal offence that involves attempting to obstruct the process of law
occupational therapist — professional who assists with rehabilitation
of the first magnitude — of the greatest importance
on a shoestring budget — with very little money to spend
one-eyed trouser snake — a vulgar term for the male member; penis
open network computing — (ONC) Sun's network protocols.
open source definition — (standard) (OSD) Definition of distribution terms for open source software, promoted by the Open Source Initiative.
open source initiative — (body) (OSI) An organisation dedicated to managing and promoting the Open Source Definition for the good of the community.
operating instructions — instructions on how to use something (such an electrical appliance, etc)
organizational culture — the customs, rituals, and values shared by the members of an organization that have to be accepted by new members
out-of-body experience — a vivid feeling of being detached from one's body, usually involving observing it and its environment from nearby
outside awareness port — (humour) (OAP) A humorous IBM term for a window (the glass kind) rather than the GUI kind.
over-industrialization — the large-scale introduction of manufacturing, advanced technical enterprises, and other productive economic activity into an area, society, country, etc.
peanut-butter sandwich — a sandwich with a filling of peanut-butter
percussive maintenance — (jargon) The fine art of whacking a device to get it working, possibly using a fine adjuster.
picture of dorian gray — a novel (1891) by Oscar Wilde.
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.
potassium permanganate — a very dark purple, crystalline, water-soluble solid, KMnO 4 , used chiefly as an oxidizing agent, disinfectant, laboratory reagent, and in medicine as an astringent and antiseptic.
price variation clause — a clause in a contract allowing the seller to vary the selling price under certain conditions
private-equity company — an organization that uses private equity to gain control of and manage companies
privileged instruction — A machine code instruction that may only be executed when the processor is running in supervisor mode. Privileged instructions include operations such as I/O and memory management.
procurement department — the department of (a company, organization, etc) responsible for purchasing and buying

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