13-letter words containing h, i, e, l
- 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-steel — low-carbon steel that can be easily machined.
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrolecithal — megalecithal.
- make light of — of little weight; not heavy: a light load.
- mannheim gold — a brass alloy used to imitate gold; red brass.
- maple heights — a city in NE Ohio.
- marbled white — any butterfly of the satyrid genus Melanargia, with panelled black-and-white wings, but technically a brown butterfly; found in grassland
- marsh trefoil — buck bean.
- martin luther — Martin [mahr-tn;; German mahr-teen] /ˈmɑr tn;; German ˈmɑr tin/ (Show IPA), 1483–1546, German theologian and author: leader, in Germany, of the Protestant Reformation.
- melancholious — (obsolete) melancholy.
- mephobarbital — The drug methylphenobarbital.
- mesaticephaly — the state or condition of being mesaticephalic or mesocephalic
- mesencephalic — Anatomy. the midbrain.
- mesocephalism — mesocephaly
- mesotheliomas — Plural form of mesothelioma.
- metenkephalin — either of two pentapeptides that bind to morphine receptors in the central nervous system and have opioid properties of relatively short duration; one pentapeptide (Met enkephalin) has the amino acid sequence Tyr-Gly-Gly-Phe-Met and the other (Leu enkephalin) has the sequence Tyr-Gly-Gly-Phe-Leu.
- methantheline — a compound, C 2 1 H 2 6 BrNO 3 , used in the form of its bromide in the treatment of excessive sweating and salivation, peptic ulcer, stomach cramps, and other conditions resulting from nerve dysfunction.
- methemoglobin — a brownish compound of oxygen and hemoglobin, formed in the blood, as by the use of certain drugs.
- methodistical — Methodistic.
- methodologies — a set or system of methods, principles, and rules for regulating a given discipline, as in the arts or sciences.
- methodologist — a set or system of methods, principles, and rules for regulating a given discipline, as in the arts or sciences.
- methyl violet — gentian violet
- 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.
- microcephalus — An abnormally small head.
- microlecithal — having a small amount of yolk, as certain eggs or ova.
- middle french — the French language of the 14th, 15th, and 16th centuries. Abbreviation: MF.
- middle school — a school intermediate between elementary school and high school, usually encompassing grades five or six through eight.
- middleborough — a town in SE Massachusetts.
- middlesbrough — a seaport in NE England, on the Tees estuary.
- middleweights — Plural form of middleweight.
- midnight blue — Something that is midnight blue is a very dark blue colour, almost black.
- might as well — have no reason not to
- milford haven — a bay in SW Wales.
- mineral pitch — asphalt.
- minstrel show — a once popular type of stage show featuring comic dialogue, song, and dance in highly conventionalized patterns, performed by a troupe of actors traditionally comprising two end men, a chorus in blackface, and an interlocutor. Developed in the U.S. in the 19th century, this entertainment portrayed negative racial stereotypes and declined in popularity in the 20th century.
- mirthlessness — The state or condition of being mirthless.
- mischievously — maliciously or playfully annoying.
- missel thrush — mistle thrush.
- mistle thrush — a large, European thrush, Turdus viscivorus, that feeds on the berries of the mistletoe.
- mittelschmerz — dull abdominal pain occurring at the time of ovulation, attributed to the presence of free blood in the peritoneal cavity from the ruptured ovarian follicle.
- mohr's circle — a graphical construction enabling the stresses in the cross-section of a body to be determined if the principal stresses are known
- molly pitcher — Molly (Mary Ludwig Hays McCauley) 1754–1832, American Revolutionary heroine.
- monochlorides — Plural form of monochloride.
- monotheletism — the 7th-century religious doctrine that stated that Christ has only one divine will but both a divine and a human nature
- monothelitism — a person who maintains that Christ has a single theanthropic will.
- morphemically — By means of, or in terms, of morphemes.