Glossary · Nouns · M
L1 — paginated flat list. Pick a POS, pick a letter.
TermTypeDefinitionClassificationsUpdated
MasqueradingnounA type of threat action whereby an unauthorized entity gains access to a system or performs a malicious act by illegitimately posing as an authorized entity.Threat
Mass ActionnounMWE(neurology) the principle that the cortex of the brain operates as a coordinated system with large masses of neural tissue involved in all complex functioningverified
Mass DefectnounMWEthe amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particlesverified
Mass DeficiencynounMWEthe amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particlesverified
Mass HysterianounMWEa condition in which a large group of people exhibit the same state of violent mental agitationverified
Mass MurderernounMWEa person who is responsible for the deaths of many victims in a single incidentverified
Mass ProductionnounMWEthe production of large quantities of a standardized article, often using assembly line techniquesverified
Mass Rapid TransitnounMWEan urban public transit system using underground or elevated trainsverified
Mass SpectrographnounMWEa mass spectrometer that produces a graphical representation of the mass spectrumverified
Mass SpectrometernounMWEspectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometerverified
Mass SpectroscopynounMWEthe use of spectroscopy to determine the masses of small electrically charged particlesverified
Mass SpectrumnounMWEa distribution of ions as shown by a mass spectrograph or a mass spectrometerverified
Mass-Action PrinciplenounMWE(neurology) the principle that the cortex of the brain operates as a coordinated system with large masses of neural tissue involved in all complex functioningverified
Mass-Energy EquivalencenounMWE(physics) the principle that a measured quantity of mass is equivalent (according to relativity theory) to a measured quantity of energyverified
Massage ParlornounMWEa place where illicit sex is available under the guise of therapeutic massageverified
Massagernounsomeone who rubs or kneads parts of the body to stimulate circulation and promote relaxationverified
Massasauga RattlernounMWEpygmy rattlesnake found in moist areas from the Great Lakes to Mexicoverified
Massenouna shot in billiards made by hitting the cue ball with the cue held nearly verticallyverified
Masse ShotnounMWEa shot in billiards made by hitting the cue ball with the cue held nearly verticallyverified
Massed FirenounMWEfire from two or more weapons directed at a single target or area, as fire by batteries of two or more warshipsverified
Massifnouna block of the earth's crust bounded by faults and shifted to form peaks of a mountain rangeverified
Mast CellnounMWEa large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammationverified
Mastabanounan ancient Egyptian mud-brick tomb with a rectangular base and sloping sides and flat roofverified
Mastabahnounan ancient Egyptian mud-brick tomb with a rectangular base and sloping sides and flat roofverified
Master Cryptographic Ignition KeynounMWEKey device with electronic logic and circuits providing the capability for adding more operational CIKs to a keyset.PhysicalRegulatedCUI
Master FilenounMWE(computer science) a computer file that is used as the authority in a given job and that is relatively permanentverified
Master of CeremoniesnounMWEa person who acts as host at formal occasions (makes an introductory speech and introduces other speakers)verified
Master RacenounMWEa race that considers itself superior to all others and fitted to rule the othersverified
Master's DegreenounMWEan academic degree higher than a bachelor's degree but lower than a doctor's degreeverified
Mastheadnouna listing printed in all issues of a newspaper or magazine (usually on the editorial page) that gives the name of the publication and the names of the editorial staff, etc.verified
Mastic TreenounMWEan evergreen shrub of the Mediterranean region that is cultivated for its resinverified
Mastiffnounan old breed of powerful deep-chested smooth-coated dog used chiefly as a watchdog and guard dogverified
Mastocytenouna large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammationverified
Mastodonnounextinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene timesverified
Mastodontnounextinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene timesverified
Masturbationnounmanual stimulation of the genital organs (of yourself or another) for sexual pleasureverified
Matadornounthe principal bullfighter who is appointed to make the final passes and kill the bullverified
Match PlanenounMWEa plane having cutters designed to make the tongues and grooves on the edges of matchboardsverified
Match/matchingnounThe process of comparing biometric information against a previously stored template(s) and scoring the level of similarity.ProcessRegulatedPII
Matchboardnouna board that has a groove cut into one edge and a tongue cut into the other so they fit tightly together (as in a floor)verified
Matchbushnounany of several plants of the genus Gutierrezia having tiny flower heads that resemble the heads of matchesverified
Matched instructionsnounMWETwo Instructions in which the information set forth in a specific CLS Bank Rule is matched in accordance with the parameters and procedures set forth in the CLS Bank Rules.ArtifactRegulated