20-letter words containing c, h, a, s, e, g
- apothecaries' weight — a system of weights, formerly used in pharmacy, based on the Troy ounce, which contains 480 grains. 1 grain is equal to 0.065 gram
- back the wrong horse — to bet on a horse that loses the race
- bismarck archipelago — a group of over 200 islands in the SW Pacific, northeast of New Guinea: part of Papua New Guinea. Main islands: New Britain, New Ireland, Lavongai, and the Admiralty Islands. Chief town: Rabaul, on New Britain. Pop: 566 610 (2000). Area: 49 658 sq km (19 173 sq miles)
- carl friedrich gauss — (person) A German mathematician (1777 - 1855), one of all time greatest. Gauss discovered the method of least squares and Gaussian elimination. Gauss was something of a child prodigy; the most commonly told story relates that when he was 10 his teacher, wanting a rest, told his class to add up all the numbers from 1 to 100. Gauss did it in seconds, having noticed that 1+...+100 = 100+...+1 = (101+...+101)/2. He did important work in almost every area of mathematics. Such eclecticism is probably impossible today, since further progress in most areas of mathematics requires much hard background study. Some idea of the range of his work can be obtained by noting the many mathematical terms with "Gauss" in their names. E.g. Gaussian elimination (linear algebra); Gaussian primes (number theory); Gaussian distribution (statistics); Gauss [unit] (electromagnetism); Gaussian curvature (differential geometry); Gaussian quadrature (numerical analysis); Gauss-Bonnet formula (differential geometry); Gauss's identity (hypergeometric functions); Gauss sums (number theory). His favourite area of mathematics was number theory. He conjectured the Prime Number Theorem, pioneered the theory of quadratic forms, proved the quadratic reciprocity theorem, and much more. He was "the first mathematician to use complex numbers in a really confident and scientific way" (Hardy & Wright, chapter 12). He nearly went into architecture rather than mathematics; what decided him on mathematics was his proof, at age 18, of the startling theorem that a regular N-sided polygon can be constructed with ruler and compasses if and only if N is a power of 2 times a product of distinct Fermat primes.
- casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
- châlons-en-champagne — a town in NE France, on the River Marne: scene of Attila's defeat by the Romans (451 ad). Pop: 47 339 (1999)
- change a reservation — If you change a reservation, you move a booking to a different date because someone who has booked a room has informed you that they wish to stay there on a different date.
- change-speed gearbox — A change-speed gearbox is a set of movable or constant gears which allows the speed ratio between input and output shafts to be changed either manually or automatically.
- child support agency — the British government agency concerned with the welfare of children
- child-abuse register — (in Britain) a list of children deemed to be at risk of abuse or injury from their parents or guardians, compiled and held by a local authority, area health authority, or NSPCC Special Unit
- chip scale packaging — (hardware) (CSP) A type of surface mount integrated circuit packaging that provides pre-speed-sorted, pre-tested and pre-packaged die without requiring special testing. An example is Motorola's Micro SMT packaging. See also: chip-on-board, flip chip, multichip module, known good die, ball grid array.
- clay-pigeon shooting — the activity of shooting clay pigeons
- composite photograph — a photograph formed by superimposing two or more separate photographs
- convective discharge — the repulsion of ions of a gas by a highly charged body, creating a discernible wind.
- cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
- deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
- disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
- disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
- domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
- electrophysiological — Of or pertaining to electrophysiology.
- frosting on the cake — a sweet mixture, cooked or uncooked, for coating or filling cakes, cookies, and the like; icing.
- get one's hackles up — to become tense with anger; bristle
- glucosamine sulphate — a compound used in some herbal remedies and dietary supplements, esp to strengthen joint cartilage
- go like the clappers — to move extremely fast
- grade school teacher — a teacher in a grade school
- graphics accelerator — (graphics, hardware) Hardware (often an extra circuit board) to perform tasks such as plotting lines and surfaces in two or three dimensions, filling, shading and hidden line removal.
- guarded horn clauses — (language) (GHC) A parallel dialect of Prolog by K. Ueda in which each clause has a guard. GHC is similar to Parlog. When several clauses match a goal, their guards are evaluated in parallel and the first clause whose guard is found to be true is used and others are rejected. It uses committed-choice nondeterminism. See also FGHC, KL1.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- harmonic progression — a series of numbers the reciprocals of which are in arithmetic progression.
- keep a straight face — look serious, avoid smiling
- king charles spaniel — a variety of the English toy spaniel having a black-and-tan coat.
- linguistic geography — dialect geography.
- magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.
- malpighian corpuscle — Also called kidney corpuscle, Malpighian body. the structure at the beginning of a vertebrate nephron, consisting of a glomerulus and its surrounding Bowman's capsule.
- matched-pairs design — (of an experiment) concerned with measuring the values of the dependent variables for pairs of subjects that have been matched to eliminate individual differences and that are respectively subjected to the control and the experimental condition
- nephroangiosclerosis — (pathology) sclerosis of the renal arterioles.
- neurophysiologically — In terms of, or with regard to, neurophysiology.
- neuropsychologically — In terms of or by means of neuropsychology.
- no lack of something — If you say there is no lack of something, you are emphasizing that there is a great deal of it.
- orthognathic surgery — the surgical correction of deformities or malpositions of the jaw.
- photogelatin process — collotype (def 1).
- physical meteorology — the branch of meteorology dealing with the study of optical, electrical, acoustical, and thermodynamic phenomena in the atmosphere, including the physics of clouds and precipitation.
- physiologic jaundice — a transitory jaundice that affects some infants for the first few days after birth.
- physiological saline — a salt solution that has the same osmotic pressure as that found in the blood or tissues
- pseudo-psychological — of or relating to psychology.
- psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
- pyroligneous alcohol — methyl alcohol.
- repurchase agreement — a contract between a dealer, as a bank, and an investor, whereby the investor purchases securities with the promise that they will be bought back by the dealer on a designated date, for which the investor receives a fixed return.
- ring-necked pheasant — a gallinaceous Asian bird, Phasianus colchicus, having a white band around its neck, introduced into Great Britain, North America, and the Hawaiian Islands.
- sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
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