20-letter words containing m, o, t, r
- international master — a chess player of high ability but below the level of International Grand Master, as determined through specified types of international competitions.
- international system — an internationally accepted coherent system of physical units, derived from the MKSA (meter-kilogram-second-ampere) system, using the meter, kilogram, second, ampere, kelvin, mole, and candela as the basic units (SI units) respectively of the fundamental quantities of length, mass, time, electric current, temperature, amount of substance, and luminous intensity. Abbreviation: SI.
- inventory adjustment — Inventory adjustments are increases or decreases made in inventory to account for theft, loss, breakages, and errors in the amount or number of items received.
- investment portfolio — the whole range of financial investments held by an individual investor or a financial organization
- isometric projection — a type of axonometric projection in which the object is shown with its three principal axes all equally tilted from the plane of viewing, with two of them usually tilted 30 degrees upward from the horizontal
- j robert oppenheimer — J(ulius) Robert, 1904–67, U.S. nuclear physicist.
- james prescott joule — James Prescott, 1818–89, English physicist.
- jordan curve theorem — the theorem that the complement of a simple closed curve can be expressed as the union of two disjoint sets, each having as boundary the given curve.
- joseph of arimathaea — a member of the Sanhedrin who placed the body of Jesus in the tomb. Matt. 27:57–60; Mark 15:43.
- kármán vortex street — a regular stream of vortices shed from a body placed in a fluid stream: investigated by Kármán who advanced a formula for the frequency of the shed vortices in terms of the stream velocity and the dimensions of the body
- keep your mouth shut — If you keep your mouth shut about something, you do not talk about it, especially because it is a secret.
- laboratory equipment — apparatus for scientific research and experiments
- laurentian mountains — a range of low mountains in E Canada, in Quebec between the St Lawrence River and Hudson Bay. Highest point: 1191 m (3905 ft)
- least-squares method — a method of estimating values from a set of observations by minimizing the sum of the squares of the differences between the observations and the values to be found.
- lieutenant commander — a commissioned officer ranking next below a commander and next above a lieutenant.
- life-support machine — A life-support machine is the equipment that is used to keep a person alive when they are very ill and cannot breathe without help.
- literate programming — (programming, text) Combining the use of a text formatting language such as TeX and a conventional programming language so as to maintain documentation and source code together. Literate programming may use the inverse comment convention.
- logarithmic function — a function defined by y = log bx, especially when the base, b, is equal to e, the base of natural logarithms.
- lonely hearts column — the part of a newspaper or magazine where lonely hearts ads appear
- longitudinal framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
- lower yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park, that is 98 m (320 ft) high
- lump in one's throat — the passage from the mouth to the stomach or to the lungs, including the pharynx, esophagus, larynx, and trachea.
- lutherville-timonium — a city in N Maryland, near Baltimore.
- lymphogranulomatosis — widespread infectious granuloma of the lymphatic system.
- macular degeneration — degeneration of the central portion of the retina, resulting in a loss of sharp vision.
- magical mystery tour — something exciting and mysterious; esp an exploration of a new place where somebody being shown or taken around does not know where exactly they will be going
- magnetoencephalogram — a record of the magnetic field of the brain. Abbreviation: MEG.
- magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.
- magnification factor — the size of a magnified image of an object divided by the size of the object itself
- mail transport agent — Message Transfer Agent
- mail-order catalogue — a catalogue of goods you can buy from a particular company by mail order
- maintenance contract — a formal agreement between two parties which states that one party will keep a building, vehicle, machine, etc, belonging to the other party in good condition by regularly checking it and repairing it when necessary
- make head (n)or tail — If you say that you cannot make head nor tail of something or you cannot make head or tail of it, you are emphasizing that you cannot understand it at all.
- make head or tail of — to attempt to understand (a problem, etc)
- make short shrift of — to dispose of quickly and unsympathetically
- mannitol hexanitrate — a colorless, crystalline, water-insoluble, explosive solid, C 6 H 8 N 6 O 1 8 , used as a fulminating agent in percussion caps and in the treatment of hypertension and coronary insufficiency.
- margaret of scotland — Saint. 1045–93, queen consort of Malcolm III of Scotland. Her piety and benefactions to the church led to her canonization (1250). Feast days: June 10, Nov 16
- marginal probability — (in a multivariate distribution) the probability of one variable taking a specific value irrespective of the values of the others
- mary, queen of scots — family name Stuart. 1542–87, queen of Scotland (1542–67); daughter of James V of Scotland and Mary of Guise. She was married to Francis II of France (1558–60), her cousin Lord Darnley (1565–67), and the Earl of Bothwell (1567–71), who was commonly regarded as Darnley's murderer. She was forced to abdicate in favour of her son (later James VI of Scotland) and fled to England. Imprisoned by Elizabeth I until 1587, she was beheaded for plotting against the English crown
- mass-energy equation — the equation, E=mc2, formulated by Albert Einstein, expressing the equivalence between mass and energy, where E is energy, m is mass, and c is the velocity of light.
- master of ceremonies — a person who directs the entertainment at a party, dinner, nightclub, radio or television broadcast, or the like, acting as host and introducing the speakers or performers. Abbreviation: M.C., MC.
- master of the revels — an English court official from the late 15th to early 18th centuries responsible to the Lord Chamberlain for overseeing and paying for court entertainments.
- material implication — equivalence (def 4a).
- maternal deprivation — the lack of a mother in a child's life, considered a cause of psychological problems later in life
- measure one's length — to fall, lie, or be thrown down at full length
- media access control — (networking) (MAC) The lower sublayer of the OSI data link layer. The interface between a node's Logical Link Control and the network's physical layer. The MAC differs for various physical media. See also MAC Address, Ethernet, IEEE 802.3, token ring.
- medical practitioner — doctor
- megabytes per second — (unit) (MBps, MB/s) Millions of bytes per second. A unit of data rate. 1 MB/s = 1,000,000 bytes per second (not 1,048,576).
- megakaryocytopoiesis — (biology) The cellular development process that leads to platelet production.
- member of parliament — A Member of Parliament is a person who has been elected by the people in a particular area to represent them in a country's parliament. The abbreviation MP is often used.