20-letter words containing a, t, o, r
- 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.
- membranous labyrinth — an intricate combination of paths or passages in which it is difficult to find one's way or to reach the exit. Synonyms: maze, network, web.
- menstrual extraction — an abortion procedure involving suction aspiration of the uterine contents early in gestation, before the first missed menstrual period: sometimes performed later.
- meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
- methyl chloroformate — a colorless liquid, C 2 H 3 ClO 2 , used chiefly in organic synthesis.
- microcrystalline wax — Microcrystalline wax is a wax used as a stiffening agent and as a coating agent for tablets and capsules.
- microminiaturization — extreme miniaturization, especially of electronic equipment, with extensive use of integrated circuits.
- miliary tuberculosis — tuberculosis in which the bacilli are spread by the blood from one point of infection, producing small tubercles in other parts of the body.
- military superiority — the power, strength, or numbers of armed forces of a country viewed as an advantage over another country
- mischaracterizations — Plural form of mischaracterization.
- missionary apostolic — an honorary title conferred by the pope on certain missionaries.
- modify a reservation — If you modify a reservation, you change a detail of a booking because someone who has booked a room has asked you to.
- molecular gastronomy — an approach to cooking in which a chef’s knowledge of physics, chemistry, and biology allows him or her to experiment with unusual flavour combinations and cooking techniques
- molecular geneticist — a specialist in the study of the molecular constitution of genes and chromosomes
- mopping-up operation — an operation after a battle or campaign to root out remaining enemy forces or installations
- moreton bay chestnut — an Australian leguminous tree, Castanospermum australe, having thin smooth bark and yellow or reddish flowers: used in furniture manufacture
- most general unifier — (logic) If U is the most general unifier of a set of expressions then any other unifier, V, can be expressed as V = UW, where W is another substitution. See also unification.
- mother of the chapel — (in British trade unions in the publishing and printing industries) a woman shop steward
- mother-of-pearl moth — a pyralid moth, Pleuroptya ruralis, having a pale sheen, that is often seen around nettles, on which its green larvae feed
- motor neuron disease — Motor neuron disease is a disease which destroys the part of a person's nervous system that controls movement.
- mountain rescue team — a group of people who conduct search and rescue on a mountain, for example of someone who has fallen, got lost, etc
- multipart stationery — continuous stationery comprising two or more sheets, either carbonless or with carbon paper between the sheets
- multiple personality — a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual.
- multiplicative group — a group in which the operation of the group is multiplication.
- multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
- multistorey car park — a car park consisting of several levels
- mum-and-dad investor — a small-scale non-professional investor
- neapolitan ice cream — variously flavored and colored ice cream and ice mixtures frozen in layers.
- near someone's heart — dear or important to someone
- nemine contradicente — no one contradicting; unanimously.
- neon lamp (or tube) — a discharge lamp containing neon, that ionizes and glows with a red light (neon light) when an electric current is sent through it: used esp. in advertising signs
- net national product — the gross national product less allowance for depreciation of capital goods. Abbreviation: NNP.
- net register tonnage — the taxable gross tonnage of a merchant ship.
- network transparency — (networking) A feature of an operating system or other service which lets the user access a remote resource through a network without having to know if the resource is remote or local. For example NFS allow users to access remote files as if they were local files.
- neuromusculoskeletal — (medicine) Describing the interactions between nerves, muscles and the skeleton.
- neuropsychiatrically — In terms of neuropsychiatry.
- neutral interconnect — Network infrastructure where network service providers can freely exchange traffic without policy restrictions. Examples are the GIX (Global Internet Exchange) at MAE-East (A Metropolitan Area Ethernet around Washington), and the Ebone (European Backbone). There is currently (November 1993) no UK Neutral Interconnect.
- new democratic party — the Canadian social democratic party formed in 1961
- next program counter — (architecture) (nPC) A register in a CPU that contains the address of the instruction to be executed next.
- nickel tetracarbonyl — nickel carbonyl.
- night storage heater — a heater or radiator that stores heat at night-time because electricity is cheaper
- nikkei stock average — an index of prices on the Tokyo Stock Exchange