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17-letter words containing h, a, r, t, c

  • bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
  • bald-faced hornet — any large, stinging paper wasp of the family Vespidae, as Vespa crabro (giant hornet) introduced into the U.S. from Europe, or Vespula maculata (bald-faced hornet or white-faced hornet) of North America.
  • barchester towers — a novel (1857) by Anthony Trollope.
  • barkhausen effect — the phenomenon of short, sudden changes in the magnetism of a ferromagnetic substance occurring when the intensity of the magnetizing field is continuously altered.
  • 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.
  • blackcurrant bush — a bush of the blackcurrant plant
  • 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 delay slot — delayed control-transfer
  • 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.
  • break the back of — to complete the greatest or hardest part of (a task)
  • 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.
  • buncher resonator — See under Klystron.
  • caa the feet frae — to send (a person) sprawling
  • called to the bar — admitted to the practice of law as a barrister
  • can't be bothered — If you say that you can't be bothered to do something, you mean that you are not going to do it because you think it is unnecessary or because you are too lazy.
  • cape horn current — the part of the Antarctic Circumpolar Current flowing E at Cape Horn.
  • carry a torch for — If you say that someone is carrying a torch for someone else, you mean that they secretly admire them or love them.
  • cartoon character — one of the people or animals in an animated film
  • 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
  • cat scratch fever — a disorder characterized by fever and swelling of the lymph glands, caused by a viral infection resulting from the scratch or bite of a cat.
  • cat-scratch fever — a disease of humans caused by an organism, Bartonella henselae, usually resulting from a scratch by a cat and characterized by lymph node enlargement
  • catastrophization — The act or process of catastrophizing.
  • catcher resonator — See under Klystron.
  • 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.
  • certified teacher — a teacher who has the required credentials to teach in a particular place
  • chamber orchestra — A chamber orchestra is a small orchestra which plays classical music.
  • chapter and verse — If you say that someone gives you chapter and verse on a particular subject, you are emphasizing that they tell you every detail about it.
  • character actress — an actress who specializes in playing odd or eccentric characters
  • character defense — a personality trait, as a habitual tendency to idealize or rationalize, that serves some unconscious defensive purpose.
  • 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.
  • characterlessness — The state or condition of being characterless; lack of character.
  • 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)
  • charles the great — ("Charles the Great") a.d. 742–814, king of the Franks 768–814; as Charles I, emperor of the Holy Roman Empire 800–814.
  • charles townshend — Charles, 1725–67, English politician, chancellor of the exchequer for whom the Townshend Acts are named.
  • chart of accounts — A chart of accounts is a list of all the accounts used in a business to classify transactions or report balances.
  • charter of rights — a section of the Canadian Constitution containing a statement of the basic rights of citizens of Canada.
  • chartered company — a company formed for the purpose of exploration and colonization
  • chartered society — a society that has an official charter
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