21-letter words containing c, h, u, t
- get-rich-quick scheme — a scheme that promises to make a person extremely wealthy over a short period of time, often at with little effort and at no risk
- goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
- gram-molecular weight — gram molecule. Abbreviation: GMW.
- greek orthodox church — the branch of the Orthodox Church constituting the national church of Greece.
- ground-effect machine — ACV (def 2).
- guaranteed scheduling — (algorithm) A scheduling algorithm used in multitasking operating systems that guarantees fairness by monitoring the amount of CPU time spent by each user and allocating resources accordingly.
- hay-pauncefote treaty — an agreement (1901) between the U.S. and Great Britain giving the U.S. the sole right to build a canal across Central America connecting the Atlantic and Pacific.
- high court of justice — an English court formed in 1873 from several superior courts and consisting of a court of original jurisdiction (High Court of Justice) and an appellate court (Court of Appeal)
- higher-order function — (HOF) A function that can take one or more functions as argument and/or return a function as its value. E.g. map in (map f l) which returns the list of results of applying function f to each of the elements of list l. See also curried function.
- historic places trust — (in New Zealand) the statutory body concerned with the conservation of historic buildings, esp with ancient Māori sites
- homogeneous catalysis — Homogeneous catalysis is catalysis in which the catalyst takes part in the reaction that it increases.
- hubble classification — a method of classifying galaxies depending on whether they are elliptical, spiral, barred spiral, or irregular
- human rights activist — a person who campaigns for human rights
- humanistic psychology — an approach to psychology that emphasizes emotions and the better understanding of the self in terms of observation of oneself and one's relations with others
- hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
- hypothetico-deductive — pertaining to or governed by the supposed method of scientific progress whereby a general hypothesis is tested by deducing predictions that may be experimentally tested. When such a prediction is falsified the theory is rejected and a new hypothesis is required
- immunoelectrophoresis — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- immunoelectrophoretic — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- immunohistochemically — By means of or in regard to immunohistochemistry.
- in the course of time — eventually
- in touch/out of touch — If you are in touch with a subject or situation, or if someone keeps you in touch with it, you know the latest news or information about it. If you are out of touch with it, you do not know the latest news or information about it.
- industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
- insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
- just a bunch of disks — (jargon, storage) (JBOD, or "Just a Bunch of Drives") A storage subsystems using multiple independent disk drives, as opposed to one form of RAID or another. For example, Unisys open storage provides JBOD in both SCSI and fibre channel interfaces.
- knights of st columba — an international, semi-secret fraternal and charitable order for Catholic laymen, which originated in New Haven, Connecticut in 1882 (the Knights of Columbus)
- launch control center — any of a number of underground U.S. command facilities prepared to launch land-based missiles in event of war.
- leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
- linguistic philosophy — an approach to philosophical problems used especially by certain British and American philosophers, inspired by G. E. Moore, and marked by the elucidation of difficult and controversial concepts by resolving them into their elements.
- loch ness monster bug — (humour) (Or "Bugfoot") A bug which cannot be reproduced or has only been sighted by one person. Named after the mythical creature claimed to inhabit Loch Ness in Scotland.
- mechanical instrument — a musical instrument, such as a barrel organ or music box, that plays a preselected piece of music by mechanical means
- mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
- mother-of-pearl cloud — nacreous cloud.
- 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
- night-blooming cereus — any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
- north pacific current — a warm current flowing eastward across the Pacific Ocean.
- not care a hang about — to not care the least bit about
- nothing in particular — not anything specific
- 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.
- orthophosphorous acid — a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.
- paper-white narcissus — a white-flowered variety of Narcissus tazetta, often forced for indoor bloom.
- pathfinder prospectus — a prospectus regarding the flotation of a new company that contains only sufficient details to test the market reaction
- photoelectric current — photocurrent.
- phrase structure tree — Linguistics. a structural representation of a sentence in the form of an inverted tree, with each node of the tree labeled according to the phrasal constituent it represents.
- phrase-structure rule — a rule that generates a sentence or other syntactic construction from words and phrases and identifies its constituent structure.
- pincushion distortion — a distortion produced by a lens in which the magnification increases toward the edge of the field.
- pipelined burst cache — Pipeline Burst Cache
- 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.
- potassium thiocyanate — a colorless, crystalline, hygroscopic, water-soluble solid, KSCN, used chiefly in the manufacture of chemicals, dyes, and drugs.
- public health service — the agency that is responsible for the health of the general public
- purchasing department — the group of staff within an organization that is responsible for buying goods or products