21-letter words containing c, h, a, y, e
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
- munchausen's syndrome — a mental disorder in which a patient feigns illness to obtain hospital treatment
- north atlantic treaty — the treaty (1949) signed by 12 countries, providing for the establishment of NATO.
- one-way hash function — (algorithm) (Or "message digest function") A one-way function which takes a variable-length message and produces a fixed-length hash. Given the hash it is computationally infeasible to find a message with that hash; in fact one can't determine any usable information about a message with that hash, not even a single bit. For some one-way hash functions it's also computationally impossible to determine two messages which produce the same hash. A one-way hash function can be private or public, just like an encryption function. MD5, SHA and Snefru are examples of public one-way hash functions. A public one-way hash function can be used to speed up a public-key digital signature system. Rather than sign a long message, which can take a long time, compute the one-way hash of the message, and sign the hash.
- open graphics library — (graphics, library) (OpenGL) A multi-platform software interface to graphics hardware, supporting rendering and imaging operations. The OpenGL interface was developed by Silicon Graphics, who license it to other vendors. The OpenGL graphics interface consists of several hundred functions operating on 2D and 3D objects, supporting basic techniques, such as modelling and smooth shading, and advanced techniques, such as texture mapping and motion blur. Many operations require a frame buffer. OpenGL is network-transparent, and a common extension to the X Window System allows an OpenGL client to communicate across a network with a different vendor's OpenGL server. OpenGL is based on Silicon Graphics' proprietary IRIS GL.
- orthogonal trajectory — the locus of a point whose path cuts each curve of a family of curves at right angles.
- pacific daylight time — the version of Pacific Standard Time that is in use when daylight saving time is being observed
- physically challenged — See example at challenged (def 1).
- play with a full deck — Nautical. a floorlike surface wholly or partially occupying one level of a hull, superstructure, or deckhouse, generally cambered, and often serving as a member for strengthening the structure of a vessel. the space between such a surface and the next such surface above: Our stateroom was on B deck.
- pneumoencephalography — encephalography.
- polygenic inheritance — the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.
- potassium thiocyanate — a colorless, crystalline, hygroscopic, water-soluble solid, KSCN, used chiefly in the manufacture of chemicals, dyes, and drugs.
- primary sex character — any of the body structures directly concerned in reproduction, as the testes, ovaries, and external genitalia.
- privacy enhanced mail —
- psychological warfare — the use of propaganda, threats, and other psychological techniques to mislead, intimidate, demoralize, or otherwise influence the thinking or behavior of an opponent.
- psychopathic disorder — (in England, according to the Mental Health Act 1983) a persistent disorder or disability of mind which results in abnormally aggressive or seriously irresponsible conduct on the part of the person concerned
- psychopharmacotherapy — the use of psychoactive drugs in the symptomatic treatment or control of mental disorders or psychiatric disease.
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- reinforcement therapy — a behavior modification technique in which appropriate behavior is strengthened through systematic reinforcement.
- schlieren photography — a type of photography which records schlieren
- scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
- scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
- strachey, christopher — Christopher Strachey
- sunday school teacher — someone who teaches at a Sunday school
- sympathetic vibration — a vibration induced by resonance.
- tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
- the early renaissance — the period from about 1400 to 1500 in European, esp Italian, painting, sculpture, and architecture, when naturalistic styles and humanist theories were evolved from the study of classical sources, notably by Donatello, Masaccio, and Alberti
- the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
- the maastricht treaty — a treaty on European economic and monetary union agreed by government leaders of the 12 EC states at a meeting in Maastricht in December 1991
- the royal scots greys — (formerly) a British cavalry regiment, the Second Dragoons
- the stationery office — (in the UK) the company that supplies the civil service with all its office supplies, machinery, printing and binding, etc
- the throwaway society — a society full of excessive consumption and waste of food, products, etc
- the yellow brick road — the road to success or happiness (in the film the Wizard of Oz the yellow brick road leads to Oz)
- theoretical physicist — a scientist who studies theoretical physics
- therapeutic community — a group-based form of therapy for mental disorders, sometimes residential
- third party procedure — impleader.
- third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
- threshold wage policy — a policy whereby wages are increased in accordance with inflation
- to fly in the face of — If an action or belief flies in the face of accepted ideas or rules, it seems to completely oppose or contradict them.
- to play the race card — if someone plays the race card they bring up the issue of race in a discussion, perhaps for sympathy or to seek popularity by appealing to racist sentiment
- trichloroacetaldehyde — chloral (def 1).
- vertically challenged — short in stature.
- veterinary technician — a veterinarian’s assistant, trained to provide medical care for animals, as performing diagnostic tests or administering vaccines and medication.
- youth training scheme — (formerly, in Britain) a scheme, run by the Training Agency, to provide vocational training for unemployed 16–17-year-olds