25-letter words containing a, d, n, t

memorandum of association — a document giving details such as the company's name, the purpose of the company, and the address of its registered office that is legally required when incorporating a company in certain countries such as the UK
metal oxide semiconductor — a three-layer sandwich of a metal, an insulator (usually an oxide of the substrate), and a semiconductor substrate, used in integrated circuits. Abbreviation: MOS.
methylrosaniline chloride — gentian violet.
minimal brain dysfunction — (no longer in technical use) attention deficit disorder.
multi-scene control board — preset board.
narrow-leaved bottle tree — any of several trees of the genus Brachychiton, native to Australia, characterized by a bottle-shaped swelling of the trunk, as B. rupestris (narrow-leaved bottle tree) or B. australis (broad-leaved bottle tree)
national advanced systems — (company) (NAS) A company, previously known as ITEL, that made IBM plug-compatible hardware and was bought by Hitachi.
national enterprise board — a public corporation established in 1975 to help the economy of the UK. In 1981 it merged with the National Research and Development Council to form the British Technology Group
net positive suction head — The net positive suction head is a measure of a pump's performance.
never do things by halves — If you say that someone never does things by halves, you mean that they always do things very thoroughly.
nine/seven/ten-day wonder — If you say that someone or something is a nine -day wonder or a one -day wonder, you disapprove of the fact that they are attracting so much interest and attention, because you think that their popularity will only last for a very short time.
non-algorithmic procedure — heuristic
normal equivalent deviate — a value x such that the integral of a normal curve over all those values of the independent variable less than x is equal to the given probability.
not darken someone's door — not come to someone's home
not for the faint-hearted — If you say that something is not for the faint-hearted, you mean that it is an extreme or very unusual example of its kind, and is not suitable for people who like only safe and familiar things.
nuffield teaching project — (in Britain) a complete school programme in mathematics, science, languages, etc, with suggested complementary theory and practical work
off the top of one's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
on the big/small etc side — If you say that something is on the small side, you are saying politely that you think it is slightly too small. If you say that someone is on the young side, you are saying politely that you think they are slightly too young.
on the edge of one's seat — If you say that someone is on the edge of their seat or chair, you mean that they are very interested in what is happening or what is going to happen.
on the horns of a dilemma — one of the bony, permanent, hollow paired growths, often curved and pointed, that project from the upper part of the head of certain ungulate mammals, as cattle, sheep, goats, or antelopes.
on the side of the angels — If you say that someone is on the side of the angels, you believe very strongly that what they are doing is right.
on the understanding that — with the condition that; providing
open educational resource — Usually, open educational resources. a piece of content or a tool for teaching or learning, often developed online, that is made available free of charge for anyone to use, revise, adapt, or redistribute. Abbreviation: OER.
ordinary national diploma — a vocational qualification in England and Wales and Northern Ireland. It is the highest level of the BTEC structure and is equal to A-Levels
outside broadcasting unit — a mobile studio from which broadcasts are made
oxidative phosphorylation — the aerobic synthesis, coupled to electron transport, of ATP from phosphate and ADP.
page description language — a high-level programming language for determining the output of a page printer designed to work with it, independent of the printer's internal codes. Abbreviation: PDL.
personal flotation device — a life preserver, life jacket, or other device for keeping a person afloat in the water. Abbreviation: PFD.
personalized number plate — a car registration plate that has the owner's initials or name on it
play into someone's hands — a dramatic composition or piece; drama.
poacher turned gamekeeper — someone whose occupation or behaviour is the opposite of what it previously was, such as a burglar who now advises on home security
point-and-drool interface — (abuse) (Or "point-and-grunt interface") A parody of "point-and-shoot interface", describing a windows, icons, and mouse-based (WIMP) graphical user interface. The implication, of course, is that such an interface is only suitable for idiots. See for the rest of us, WIMP, drool-proof paper.
point-and-grunt interface — point-and-drool interface
polycystic ovary syndrome — a hormonal disorder in which the Graafian follicles in the ovary fail to develop completely so that they are unable to ovulate, remaining as multiple cysts that distend the ovary. The results can include reduced fertility, obesity, and hirsutism
primary domain controller — (networking) (PDC) Each Windows NT domain has a Primary Domain Controller and zero or more Backup Domain Controllers. The PDC holds the SAM database and authenticates access requests from workstations and servers in the domain.
primary management domain — (messaging) (PRMD) The component of an X.400 electronic mail address that gives the organisation name, usually abbreviated to p= in written addresses. See also ADMD.
primary producing country — a country that is involved in the extraction or winning of products consisting of raw materials, as in agriculture, fishing, forestry, hunting, or mining
profit and loss statement — A profit and loss statement is a statement that is compiled at the end of a financial year showing that year's revenue and expense items and indicating gross and net profit or loss.
property damage insurance — insurance against losses arising from damage to the property of others, as in a motor-vehicle accident.
put one's head in a noose — to bring about one's own downfall
put/set sb's mind at rest — To put someone's mind at rest or set their mind at rest means to tell them something that stops them worrying.
qualified majority voting — a voting system, used by the EU Council of Ministers, enabling certain resolutions to be passed without unanimity
radio-controlled junction — A radio-controlled junction is a piece of equipment used to control underground pipelines which connect oil tanks.
ram down someone's throat — the passage from the mouth to the stomach or to the lungs, including the pharynx, esophagus, larynx, and trachea.
rate monotonic scheduling — (algorithm) A means of scheduling the time allocated to periodic hard-deadline real-time users of a resource. The users are assigned priorities such that a shorter fixed period between deadlines is associated with a higher priority. Rate monotonic scheduling provides a low-overhead, reasonably resource-efficient means of guaranteeing that all users will meet their deadlines provided that certain analytical equations are satisfied during the system design. It avoids the design complexity of time-line scheduling and the overhead of dynamic approaches such as earliest-deadline scheduling.
read someone the riot act — If someone in authority reads you the riot act, they tell you that you will be punished unless you start behaving properly.
really simple syndication — Rich Site Summary
registered representative — an employee of a member firm of a stock exchange, authorized to execute orders for the clients of the firm.
rehabilitation department — a government department set up after World War II to assist ex-servicemen
rubidium-strontium dating — a radiometric dating method whereby the ratio of rubidium isotope to strontium in a mineral is used to calculate the age of the mineral, based on the rate of radioactive decay of rubidium to strontium.

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