17-letter words containing c, h, i, r, a
- back on the rails — If something is back on the rails, it is beginning to be successful again after a period when it almost failed.
- backward chaining — (algorithm) An algorithm for proving a goal by recursively breaking it down into sub-goals and trying to prove these until facts are reached. Facts are goals with no sub-goals which are therefore always true. Backward training is the program execution mechanism used by most logic programming language like Prolog. Opposite: forward chaining.
- bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
- bergisch gladbach — city in W Germany, in the state of North Rhine-Westphalia: pop. 105,000
- bergisch-gladbach — an industrial city in W Germany, near Cologne.
- best first search — (algorithm) A graph search algorithm which optimises breadth first search by ordering all current paths according to some heuristic. The heuristic attempts to predict how close the end of a path is to a solution. Paths which are judged to be closer to a solution are extended first. See also beam search, hill climbing.
- biological father — the man whose semen fertilized the ovum from which a child was born
- biological mother — the mother who gave birth to a child
- biological rhythm — biorhythm.
- biopharmaceutical — of or relating to drugs produced using biotechnology
- birth certificate — Your birth certificate is an official document which gives details of your birth, such as the date and place of your birth, and the names of your parents.
- boatswain's chair — a seat consisting of a short flat board slung from ropes, used to support a person working on the side of a vessel or in its rigging
- branch prediction — (processor, algorithm) A technique used in some processors with instruction prefetch to guess whether a conditional branch will be taken or not and prefetch code from the appropriate location. When a branch instruction is executed, its address and that of the next instruction executed (the chosen destination of the branch) are stored in the Branch Target Buffer. This information is used to predict which way the instruction will branch the next time it is executed so that instruction prefetch can continue. When the prediction is correct (and it is over 90% of the time), executing a branch does not cause a pipeline break. Some later CPUs simply prefetch both paths instead of trying to predict which way the branch will go. An extension of the idea of branch prediction is speculative execution.
- breach of promise — (formerly) failure to carry out one's promise to marry
- british cameroons — a former British trust territory of West Africa
- british columbian — of or relating to British Columbia or its inhabitants
- british-cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- calcium hydroxide — a white crystalline slightly soluble alkali with many uses, esp in cement, water softening, and the neutralization of acid soils. Formula: Ca(OH)2
- carbon disulphide — a colourless slightly soluble volatile flammable poisonous liquid commonly having a disagreeable odour due to the presence of impurities: used as an organic solvent and in the manufacture of rayon and carbon tetrachloride. Formula: CS2
- carbon microphone — a microphone in which a diaphragm, vibrated by sound waves, applies a varying pressure to a container packed with carbon granules, altering the resistance of the carbon. A current flowing through the carbon is thus modulated at the frequency of the sound waves
- carbonyl chloride — phosgene
- carboxyhemoglobin — a compound formed in the blood when carbon monoxide occupies the positions on the hemoglobin molecule normally taken by oxygen, resulting in cellular oxygen starvation
- cardiogenic shock — a type of shock caused by decreased cardiac output despite adequate blood volume, owing to a disease of the heart itself, as myocardial infarction, or any other factor that interferes with the filling or emptying of the heart.
- casting the runes — (jargon) What a guru does when you ask him or her to run a particular program because it never works for anyone else; especially used when nobody can ever see what the guru is doing different from what J. Random Luser does. Compare incantation, runes, examining the entrails; also see the AI koan about Tom Knight.
- castle in the air — a hope or desire unlikely to be realized; daydream
- catastrophization — The act or process of catastrophizing.
- cathedral ceiling — a high ceiling formed by or suggesting an open-timbered roof.
- celestial horizon — the line or circle that forms the apparent boundary between earth and sky.
- cellulose varnish — a varnish made from cellulose nitrate, used as a protective sealing film
- certified teacher — a teacher who has the required credentials to teach in a particular place
- chancery division — (in England) the Lord Chancellor's court, now a division of the High Court of Justice
- character witness — a witness in a trial who testifies to the accused's general good character rather than providing evidence about the specific offence which has led to him or her being on trial
- characterisations — Plural form of characterisation.
- characterizations — portrayal; description: the actor's characterization of a politician.
- characterological — of or relating to character or the study of character
- charente-maritime — a department of W France, in Poitou-Charentes region. Capital: La Rochelle. Pop: 576 855 (2003 est). Area: 7232 sq km (2820 sq miles)
- charge d'affaires — A chargé d'affaires is a person appointed to act as head of a diplomatic mission in a foreign country while the ambassador is away.
- charles lindbergh — Anne (Spencer) Morrow, 1906–2001, U.S. writer (wife of Charles Augustus Lindbergh).
- charter of rights — a section of the Canadian Constitution containing a statement of the basic rights of citizens of Canada.
- chartered society — a society that has an official charter
- chelsea pensioner — an old ex-soldier resident in the Chelsea Royal Hospital
- chemical engineer — A chemical engineer is a person who designs and constructs the machines needed for industrial chemical processes.
- chemical property — Chemistry. a property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed: Combustibility is an important chemical property to consider when choosing building materials.
- chemical reaction — a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei
- chemoradiotherapy — (medicine) A combination of chemotherapy and radiotherapy used to treat some cancers.
- chemotherapeutics — chemotherapy.
- chicklet keyboard — (spelling) It's spelled "chiclet keyboard".
- child pornography — pornography using a child or children as the subject.
- china grass cloth — grass cloth.
- chinagraph pencil — a coloured pencil used for writing on china, glass, etc