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13-letter words containing a, c, e, y

  • laurel cherry — a tree, Prunus caroliniana, of the rose family, of the southeastern U.S., having small, milky-white flowers and black, shiny fruit.
  • legacy system — (jargon)   A computer system or application program which continues to be used because of the cost of replacing or redesigning it and often despite its poor competitiveness and compatibility with modern equivalents. The implication is that the system is large, monolithic and difficult to modify. If legacy software only runs on antiquated hardware the cost of maintaining this may eventually outweigh the cost of replacing both the software and hardware unless some form of emulation or backward compatibility allows the software to run on new hardware.
  • lethargically — of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
  • literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
  • literacy test — an examination to determine whether a person meets the literacy requirements for voting, serving in the armed forces, etc.; a test of one's ability to read and write.
  • little cayman — an island in the W Caribbean: smallest of the Cayman Islands, NE of Grand Cayman. 10 sq. mi. (26 sq. km).
  • lysergic acid — a crystalline solid, C 16 H 16 N 2 O 2 , obtained from ergot or synthesized: used in the synthesis of LSD.
  • machine cycle — (processor)   The four steps which the CPU carries out for each machine language instruction: fetch, decode, execute, and store. These steps are performed by the control unit, and may be fixed in the logic of the CPU or may be programmed as microcode which is itself usually fixed (in ROM) but may be (partially) modifiable (stored in RAM). The fetch cycle places the current program counter contents (the address of the next instruction to execute) on the address bus and reads in the word at that location into the instruction register (IR). In RISC CPUs instructions are usually a single word but in other architectures an instruction may be several words long, necessitating several fetches. The decode cycle uses the contents of the IR to determine which gates should be opened between the CPU's various functional units and busses and what operation the ALU(s) should perform (e.g. add, bitwise and). Each gate allows data to flow from one unit to another (e.g. from register 0 to ALU input 1) or enables data from one output onto a certain bus. In the simplest case ("horizontal encoding") each bit of the instruction register controls a single gate or several bits may control the ALU operation. This is rarely used because it requires long instruction words (such an architecture is sometimes called a very long instruction word architecture). Commonly, groups of bits from the IR are fed through decoders to control higher level aspects of the CPU's operation, e.g. source and destination registers, addressing mode and ALU operation. This is known as vertical encoding. One way RISC processors gain their advantage in speed is by having simple instruction decoding which can be performed quickly. The execute cycle occurs when the decoding logic has settled and entails the passing of values between the various function units and busses and the operation of the ALU. A simple instruction will require only a single execute cycle whereas a complex instruction (e.g. subroutine call or one using memory indirect addressing) may require three or four. Instructions in a RISC typically (but not invariably) take only a single cycle. The store cycle is when the result of the instruction is written to its destination, either a register or a memory location. This is really part of the execute cycle because some instructions may write to multiple destinations as part of their execution.
  • macrencephaly — The presence of an abnormally large brain.
  • magnificently — making a splendid appearance or show; of exceptional beauty, size, etc.: a magnificent cathedral; magnificent scenery.
  • mango chutney — chutney which contains or is made from the fruit mango
  • many-coloured — having many colours
  • marcus garvey — Marcus (Moziah) [moh-zahy-uh] /moʊˈzaɪ ə/ (Show IPA), 1887–1940, Jamaican black-rights activist in the U.S. (1916–27): advocated emigration of black Americans to Africa.
  • master policy — a single policy covering a group of people, typically employees of a company, issued to an employer.
  • mastoidectomy — the removal of part of a mastoid process, usually for draining an infection.
  • megacaryocyte — Alternative form of megakaryocyte.
  • megakaryocyte — a large bone-marrow cell having a lobulate nucleus, regarded as the source of blood platelets.
  • megalocephaly — Cephalometry, Craniometry. macrocephalic.
  • megasporocyte — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
  • melvin conway — (person)   An early proto-hacker who wrote an assembler for the Burroughs 220 called SAVE and (probably) formulated Conway's Law.
  • merchant navy — commercial ships
  • merry dancers — the aurora borealis
  • mesaticephaly — the state or condition of being mesaticephalic or mesocephalic
  • messianically — the promised and expected deliverer of the Jewish people.
  • metabolically — of, relating to, or affected by metabolism.
  • metamerically — In a metameric manner.
  • metaphoricity — The power of a metaphor.
  • metaphysician — a person who creates or develops metaphysical theories.
  • metaphysicist — a person who creates or develops metaphysical theories.
  • metaphysicize — to think, write, etc, metaphysically
  • metonymically — In a metonymic fashion; using metonymy.
  • metric martyr — a shopkeeper or trader willing to be prosecuted for continuing to use only imperial measures as a protest against the perceived imposition of metric measures by the European Union
  • mexican poppy — any tropical American poppy of the genus Argemone, especially A. mexicana (Mexican poppy) having prickly pods and leaves and yellow or white, poppylike flowers.
  • microanalyses — Plural form of microanalysis.
  • microaneurysm — An extremely small aneurysm.
  • micropayments — Plural form of micropayment.
  • military pace — a pace, equal to a single step, used to coordinate the marching of soldiers, equal in the U.S. to 2½ feet (76 cm) for quick time and 3 feet (91 cm) for double time.
  • mixed crystal — a crystal consisting of a solid solution of two or more distinct compounds
  • money-changer — a person whose business is the exchange of currency, usually of different countries, at a fixed or official rate.
  • moneychangers — Plural form of moneychanger.
  • monkey jacket — a short, close-fitting jacket or coat, formerly worn by sailors.
  • monogenically — In a monogenic manner.
  • monogynoecial — (of a fruit) developing from a single pistil.
  • monterey jack — a mild, light-yellow, semisoft cheese
  • morphemically — By means of, or in terms, of morphemes.
  • multicategory — (mathematics) A generalization of the concept of category that allows morphisms of multiple arity.
  • multiliteracy — The ability to be literate in terms of text in media other than paper.
  • musicotherapy — the treatment of mental disorders with music
  • mutagenically — in a mutagenic manner
  • mycetophagous — That feeds on fungi.
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