13-letter words containing c, a, m
- machiavellian — of, like, or befitting Machiavelli.
- machiavellism — of, like, or befitting Machiavelli.
- machicolation — an opening in the floor between the corbels of a projecting gallery or parapet, as on a wall or in the vault of a passage, through which missiles, molten lead, etc., might be cast upon an enemy beneath.
- machilipatnam — a city in E Andhra Pradesh state, in S India, on the Bay of Bengal: first British trading settlement 1611.
- machinability — The condition of being machinable.
- 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.
- macías nguema — a former name of Bioko.
- mackerel gull — tern1 .
- mackinaw boat — a flat-bottomed boat with sharp prow and square stern, propelled by oars and sometimes sails, formerly widely used on the upper Great Lakes.
- mackinaw coat — a short double-breasted coat of a thick woolen material, commonly plaid.
- macrencephaly — The presence of an abnormally large brain.
- macro-mineral — any mineral required in the diet in relatively large amounts, especially calcium, iron, magnesium, phosphorus, potassium, and zinc.
- macro-segment — a stretch of speech preceded and followed but not interrupted by a pause.
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrocephalus — Alternative spelling of macrocephalous.
- macroclimates — Plural form of macroclimate.
- macroclimatic — Relating to macroclimate.
- macrodiagonal — the longer of two diagonals
- macrodynamics — Large-scale dynamics.
- macroeconomic — the branch of economics dealing with the broad and general aspects of an economy, as the relationship between the income and investments of a country as a whole.
- macroglobulin — A plasma globulin of high molecular weight.
- macrolecithal — megalecithal.
- macromolecule — a very large molecule, as a colloidal particle, protein, or especially a polymer, composed of hundreds or thousands of atoms.
- macromutation — a mutation that has a profound effect on the resulting organism, as a change in a regulatory gene that controls the expression of many structural genes.
- macronucleate — having a macronucleus.
- macronutrient — Nutrition. any of the nutritional components of the diet that are required in relatively large amounts: protein, carbohydrate, fat, and the macrominerals.
- macroorganism — an organism that can be seen with the naked eye.
- macroparasite — (biology) Any parasite that is visible to the naked eye.
- macropinacoid — a crystalline pinacoid which runs parallel to the longer horizontal axis
- macroplankton — planktonic organisms of about 1 mm in length.
- macroscopical — Macroscopic.
- macrovascular — Of or pertaining to the larger blood vessels.
- maculopapular — (medicine, of a rash) Consisting of a flat, red area on the skin that is covered with small confluent bumps, as in scarlet fever and measles.
- madeira sauce — a savoury sauce made with Madeira wine and served with meat
- magazine rack — shelf for storing periodicals
- magic lantern — a device having an enclosed lamp and a lenslike opening, formerly used for projecting and magnifying images mounted on slides or films.
- magic realism — a style of painting and literature in which fantastic or imaginary and often unsettling images or events are depicted in a sharply detailed, realistic manner.
- magistratical — Of, pertaining to, or proceeding from, a magistrate; having the authority of a magistrate.
- magma chamber — a reservoir of magma in the earth's crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface
- magna graecia — the ancient colonial cities and settlements of Greece in S Italy.
- magnet school — a public school with special programs and instruction that are not available elsewhere in a school district and that are specially designed to draw students from throughout a district, especially to aid in desegregation.
- magnetic axis — the straight line joining the two poles of a magnet, as the poles of the earth
- magnetic core — Computers. core1 (def 12a).
- magnetic disk — Also called disk, hard disk. a rigid disk coated with magnetic material, on which data and programs can be stored.
- magnetic drum — a cylinder coated with magnetic material, on which data and programs can be stored.
- magnetic flux — the total magnetic induction crossing a surface, equal to the integral of the component of magnetic induction perpendicular to the surface over the surface: usually measured in webers or maxwells.