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13-letter words containing e, c, h, i

  • 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
  • load the dice — anything put in or on something for conveyance or transportation; freight; cargo: The truck carried a load of watermelons.
  • lower chinook — an extinct Chinookan language that was spoken by tribes on both banks of the Columbia River estuary.
  • lucifer match — friction match.
  • lymphoid cell — a cell in the lymph glands that produces leukocytes.
  • maccheroncini — thin pasta tubes made from wheat flour
  • machiavellian — of, like, or befitting Machiavelli.
  • machiavellism — of, like, or befitting Machiavelli.
  • 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.
  • machine error — an error caused by a fault or defect in a machine rather than by human error
  • machine screw — a threaded fastener, either used with a nut or driven into a tapped hole, usually having a diameter of about 1/4 inch (6.4 mm) or less and a slotted head for tightening by a screwdriver.
  • machine-steel — low-carbon steel that can be easily machined.
  • machinegunned — Simple past tense and past participle of machinegun.
  • macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
  • macrolecithal — megalecithal.
  • magnetic head — head (def 33).
  • maiden speech — the first speech made in a legislature by a newly elected member.
  • make mischief — cause trouble
  • marchionesses — Plural form of marchioness.
  • mare chronium — an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth.
  • master switch — a switch that can be used to turn on or off the supply of electricity to a building or to certain equipment
  • match fitness — the condition of being match-fit
  • mathematician — an expert or specialist in mathematics.
  • mathematicism — the belief that everything can be explained in mathematical terms
  • mechanisation — Alternative spelling of mechanization.
  • mechanization — to make mechanical.
  • medicine shop — (in Malaysia) a Chinese chemist's shop where traditional herbs are sold as well as modern drugs. It is not, however, a dispensary for prescribed medicines
  • medicine show — a traveling troupe, especially in the late 1800s, offering entertainment in order to attract customers for the patent medicines or purported cures proffered for sale.
  • melancholious — (obsolete) melancholy.
  • merchandisers — Plural form of merchandiser.
  • merchandising — the manufactured goods bought and sold in any business.
  • merchandizing — Alternative spelling of merchandising.
  • merchant ship — law: commercial vessel
  • mesaticephaly — the state or condition of being mesaticephalic or mesocephalic
  • mesencephalic — Anatomy. the midbrain.
  • mesocephalism — mesocephaly
  • messerschmitt — any of several types of fighter aircraft extensively used by the German air force in World War II, especially the ME-109.
  • metachromasia — A characteristic change in the colour of staining carried out in biological tissues, exhibited by certain aniline dyes when they bind to particular substances present in these tissues, called chromotropes.
  • metachromatic — change of color, especially that due to variation in the temperature of a body.
  • metaheuristic — An experimental heuristic method for solving a general class of computational problems by combining user procedures in the hope of obtaining a more efficient or robust procedure.
  • metamorphotic — Of or relating to metamorphosis.
  • 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
  • method acting — film, theater: acting approach
  • methodistical — Methodistic.
  • michelin star — a mark of distinction awarded by the Michelin travel guides to a restaurant in recognition of the high quality of its cooking. A restaurant may receive one, two, or three stars, representing very good, exceptional, or exquisite cuisine, respectively
  • microcephalia — Microcephaly.
  • microcephalic — having a head with a small braincase.
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