21-letter words containing a, p, t, e, r, i
- imprecise probability — (probability) A probability that is represented as an interval (as opposed to a single number) included in [0,1].
- in (or out of) phase — in (or not in) a state of exactly parallel movements, oscillations, etc.; in (or not in) synchronization
- in (or out of) place — in (or out of) the customary, proper, or assigned place
- indicated horse-power — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
- indo-australian plate — a major tectonic division of the earth's crust, comprising India and the Australian continent and adjacent suboceanic basins (the Tasman, South Australian, Mid-Indian, Cocos, and Australian basins); separated from the Eurasian Plate by the Java Trench, from the Pacific Plate by the Tonga-Kermadec Trench, and from the African Plate by a series of mid-ocean ridges (the Carlsberg, Mid-Indian, and Southeast Indian ridges).
- information appliance — (hardware) (IA) A consumer device that performs only a few targeted tasks and is controlled by a simple touch-screen interface or push buttons on the device's enclosure.
- inner spring mattress — a mattress with a system of wire coils or springs inside for buoyancy or comfort purposes
- insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
- integer specbaseratio — SPECbase_int92
- intellectual property — Law. property that results from original creative thought, as patents, copyright material, and trademarks.
- interpersonal therapy — a type of psychotherapy that focuses on conflicts in one's personal relationships.
- isopropylideneacetone — mesityl oxide.
- keep the ball rolling — a spherical or approximately spherical body or shape; sphere: He rolled the piece of paper into a ball.
- leaning tower of pisa — a round, marble campanile in Pisa, Italy, begun in 1174 and now 17 feet (5.2 meters) out of the perpendicular in its height of 179 feet (54 meters).
- linear graph notation — (LGN) A linearised representation of TCOL trees.
- magnetic permeability — permeability (def 2).
- magneto-optical drive — magneto-optical disk
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
- make up for lost time — compensate for past inaction
- manufacturing process — chain of production
- marine superintendent — a person who is responsible for the maintenance of the vessels of a shipping line, for their docking and the handling of cargo, and for the hiring of personnel for deck departments.
- metabotropic receptor — an indirect receptor which initiates an intracellular biochemical cascade after it is triggered by an agonistic ligand
- metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
- microware corporation — Authors of OS-9. Address: Des Moines, Iowa, USA.
- miniature photography — photography with a camera using film that is 35 millimeters wide or less.
- modern apprenticeship — an arrangement that allows a school leaver to gain vocational qualifications while being trained in a job
- motion-picture camera — a sequence of consecutive pictures of objects photographed in motion by a specially designed camera (motion-picture camera) and thrown on a screen by a projector (motion-picture projector) in such rapid succession as to give the illusion of natural movement.
- 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
- national park service — a division of the Department of the Interior, created in 1916, that administers national parks, monuments, historic sites, and recreational areas.
- naturalization papers — documents confirming that someone has been awarded citizenship of a country he or she was not born in
- near-death experience — A near-death experience is a strange experience that some people who have nearly died say they had when they were unconscious.
- negative prescription — the barring of adverse claims to property, etc, after a specified period of time has elapsed, allowing the possessor to acquire title
- 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."
- non-repeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
- nonproportional cover — Nonproportional cover is reinsurance cover such as excess of loss reinsurance where the reinsurer's liability is not calculated as a proportion of the insurance.
- north pacific current — a warm current flowing eastward across the Pacific Ocean.
- nuclear power station — a station or plant where nuclear energy is converted into heat, electricity, etc
- old spanish practices — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- open trading protocol — Internet Open Trading Protocol
- operational amplifier — a high-gain, high-input impedance amplifier, usually an integrated circuit, that can perform mathematical operations when suitably wired.
- operational semantics — (theory) A set of rules specifying how the state of an actual or hypothetical computer changes while executing a program. The overall state is typically divided into a number of components, e.g. stack, heap, registers etc. Each rule specifies certain preconditions on the contents of some components and their new contents after the application of the rule. It is similar in spirit to the notion of a Turing machine, in which actions are precisely described in a mathematical way. Compuare axiomatic semantics, denotational semantics.
- ophthalmia neonatorum — inflammation of the eyes of a newborn child due to an infectious disease, as gonorrhea, contracted during birth from the infected mother.
- opposite-sex marriage — (broadly) any of the diverse forms of interpersonal union established in various parts of the world to form a familial bond that is recognized legally, religiously, or socially, granting the participating partners mutual conjugal rights and responsibilities and including, for example, opposite-sex marriage, same-sex marriage, plural marriage, and arranged marriage: Anthropologists say that some type of marriage has been found in every known human society since ancient times. See Word Story at the current entry.
- optical double (star) — double star (sense 2)
- orthogonal projection — a two-dimensional graphic representation of an object in which the projecting lines are at right angles to the plane of the projection. Also called orthogonal projection. Compare isometric (def 5).
- pacific standard time — See under standard time.
- painter and decorator — a person who paints and decorates houses as a trade
- paper-white narcissus — a white-flowered variety of Narcissus tazetta, often forced for indoor bloom.