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21-letter words containing a, l, u, m

  • mengistu haile mariam — born 1937, Ethiopian political leader: head of state 1977–87; president 1987–91.
  • modulus of elasticity — the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit
  • mother-of-pearl cloud — nacreous cloud.
  • mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
  • mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
  • muhammad al-khwarizmi — Muhammad ibn Musa al-Khwarizmi
  • muhammad riza pahlavi — Pahlavi (def 1).
  • multi-level marketing — Multi-level marketing is a marketing technique which involves people buying a product, then earning a commission by selling it to their friends. The abbreviation MLM is also used.
  • multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
  • multilayer perceptron — A network composed of more than one layer of neurons, with some or all of the outputs of each layer connected to one or more of the inputs of another layer. The first layer is called the input layer, the last one is the output layer, and in between there may be one or more hidden layers.
  • multiplex transmitter — a transmitter that sends signals by multiplex
  • multiplication factor — the ratio of the number of neutrons in a generation to the number of neutrons in the previous generation: when the multiplication factor is equal to or greater than one, a chain reaction is possible
  • municipal corporation — a city, town, village, etc., that operates under a corporate charter granted by the state.
  • muon-catalysed fusion — an experimental form of nuclear fusion in which hydrogen and deuterium muonic atoms are formed. Because the mass of the muon is much larger than that of the electron, the atoms are smaller, and the nuclei are close enough for fusion to occur
  • narrow-angle glaucoma — Ophthalmology. angle-closure glaucoma. See under glaucoma.
  • negotiable instrument — order or promise to pay money
  • non-maintainer upload — (operating system)   (NMU) A release of a Debian package by someone other than its usual maintainer. E.g. "The bug was fixed in a recent NMU."
  • northumberland strait — the part of the Gulf of St. Lawrence that separates Prince Edward Island from New Brunswick and Nova Scotia, in SE Canada. About 200 miles (320 km) long; 9–30 miles (15–48 km) wide.
  • oil-in-water emulsion — An oil-in-water emulsion is a mixture in which an oily medicine is dispersed in water or other liquid.
  • ophthalmia neonatorum — inflammation of the eyes of a newborn child due to an infectious disease, as gonorrhea, contracted during birth from the infected mother.
  • parliamentary inquiry — a question asked of the presiding officer of a parliament in relation to parliamentary law
  • payload assist module — a U.S. solid-propellant rocket used to boost a medium-weight spacecraft from a circular low-earth orbit to an elliptical transfer orbit for later insertion into a geosynchronous orbit. Abbreviation: PAM.
  • pdp assembly language — (language)   (PAL) The assembly language for the PDP-8 and PDP-11.
  • ploughman's spikenard — a European plant, Inula conyza, with tubular yellowish flower heads surrounded by purple bracts: family Asteraceae (composites)
  • pneumoencephalography — encephalography.
  • premature ejaculation — a male psychosexual disorder in which ejaculation occurs soon after the commencement of sexual intercourse.
  • premenstrual syndrome — a complex of physical and emotional changes, including depression, irritability, appetite changes, bloating and water retention, breast soreness, and changes in muscular coordination, one or more of which may be experienced in the several days before the onset of menstrual flow. Abbreviation: PMS.
  • pressure-vacuum valve — a valve for relieving a sealed tank of any pressure or vacuum exceeding acceptable limits.
  • prince rupert's metal — a brass composed of from about 60 to 85 percent copper and about 15 to 40 percent zinc, used to imitate gold.
  • probable maximum loss — Probable maximum loss is the maximum amount of loss that can be expected under normal circumstances.
  • public address system — loudspeaker
  • public administration — the implementation of public policy, largely by the executive branch.
  • public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
  • pulmonary circulation — the circulation of blood from the heart to the lungs for oxygenation and back to the heart.
  • pulse code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • pulse-code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • pulse-time modulation — radio transmission in which the carrier is modulated to produce a series of pulses timed to transmit the amplitude and pitch of a signal. Abbr.: PTM.
  • quantum teleportation — a hypothetical technique to instantly transfer properties from one quantum system to another without contact, or to transfer a quantum state to an arbitrarily distant location.
  • quartermaster general — a general in command of the Quartermaster Corps.
  • remote procedure call — (networking, programming)   (RPC) A protocol which allows a program running on one host to cause code to be executed on another host without the programmer needing to explicitly code for this. RPC is an easy and popular paradigm for implementing the client-server model of distributed computing. An RPC is initiated by the caller (client) sending request message to a remote system (the server) to execute a certain procedure using arguments supplied. A result message is returned to the caller. There are many variations and subtleties in various implementations, resulting in a variety of different (incompatible) RPC protocols.
  • requirements analysis — (project)   The process of reviewing a business's processes to determine the business needs and functional requirements that a system must meet.
  • residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
  • rocky mountain locust — a migratory locust, Melanoplus spretus, that occurs in North America, especially the Great Plains, where swarms cause great damage to crops and other vegetation.
  • roman catholic church — the Christian church of which the pope, or bishop of Rome, is the supreme head.
  • saint elias mountains — a mountain range between SE Alaska and the SW Yukon, Canada. Highest peak: Mount Logan, 5959 m (19 550 ft)
  • sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
  • san gabriel mountains — a mountain range in S California, N of Los Angeles. Highest peak, San Antonio Peak, 10,080 feet (3072 meters).
  • scalar multiplication — an operation used in the definition of a vector space in which the product of a scalar and a vector is a vector, the operation is distributive over the addition of both scalars and vectors, and is associative with multiplication of scalars
  • secure hash algorithm —
  • simple actor language — (language)   (SAL) A minimal actor language, used for teaching in:
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