11-letter words containing m, a, p, e, r
- primary key — (database) A unique identifier, often an integer, that labels a certain row in a table of a relational database. When this value occurs in other tables as a reference to a particular row in the first table it is called a "foreign key". Some RDBMSes can generate a new unique identifier each time a new row is inserted, others merely allow a column to be constrained to contain unique values. A table may have multiple candidate keys, from which the primary key is chosen. The primary key should be an arbitrary value, such as an autoincrementing integer. This avoids dependence on uniqueness, permanence and format of existing columns with real-world meaning (e.g. a person's name) or other external identifier (e.g. social security number). There should be enough possible primary key values to cater for the current and expected number of rows, bearing in mind that a wider column will generally be slower to process.
- primateship — primacy (def 2).
- prime ideal — an ideal in a ring with a multiplicative identity, having the property that when the product of two elements of the ring results in an element of the ideal, at least one of the elements is an element of the ideal.
- primigenial — relating to an early stage of existence; primitive
- print media — the industry that is engaged in the printing and dissemination of news through newspapers and magazines
- pro memoria — a formal note used in diplomacy as a record of a subject that has been discussed.
- problematic — of the nature of a problem; doubtful; uncertain; questionable.
- proctodaeum — proctodeum.
- programable — capable of being programmed.
- project mac — (project) A project suggested by J C R Licklider; its founding director was MIT Prof. Robert M Fano. MAC stood for Multiple Access Computers on the 5th floor of Tech Square, and Man and Computer on the 9th floor. The major efforts were Corbato's Multics development and Marvin Minsky's Artificial Intelligence Laboratory. In 1963 Project MAC hosted a summer study, which brought many well-known computer scientists to Cambridge to use CTSS and to discuss the future of computing. Funding for Project MAC was provided by the Information Processing Techniques Office of the Advanced Research Projects Agency (ARPA) of the US Department of Defense. See also Early PL/I, MacLisp, MACSYMA, MDL, Multipop-68, OCAL.
- prolegomena — a preliminary discussion; introductory essay, as prefatory matter in a book; a prologue.
- promenading — a stroll or walk, especially in a public place, as for pleasure or display.
- promulgated — to make known by open declaration; publish; proclaim formally or put into operation (a law, decree of a court, etc.).
- proper-name — Grammar. a noun that is used to denote a particular person, place, or thing, as Lincoln, Sarah, Pittsburgh, and Carnegie Hall.
- propylamine — an isomeric amine of propyl
- prosenchyma — the tissue characteristic of the woody and bast portions of plants, consisting typically of long, narrow cells with pointed ends.
- prostomiate — having a prostomium.
- protonemata — a primary, usually filamentous structure produced by the germination of the spore in mosses and certain related plants, and from which the leafy plant which bears the sexual organs arises as a lateral or terminal shoot.
- proximately — next; nearest; immediately before or after in order, place, occurrence, etc.
- pyramid bet — a set of bets on two or more horse races or other sporting events in which the stake and winnings from the first bet automatically become the stake in the next bet, and so on as long as each bet wins.
- re-emphasis — special stress laid upon, or importance attached to, anything: The president's statement gave emphasis to the budgetary crisis.
- rear bumper — the bar at the back of a vehicle which protects it if it bumps into something
- reemphasize — to give emphasis to; lay stress upon; stress: to emphasize a point; to emphasize the eyes with mascara.
- repairwoman — a woman whose occupation is the making of repairs, readjustments, etc.
- repeat mark — a sign on a piece of music instructing the player to replay a certain passage or section
- replacement — the act of replacing.
- ripple mark — one of the wavy lines or ridges produced, especially on sand, by the action of waves, wind, or the like.
- roman peace — the establishment and maintenance of peace by armed force.
- sample rate — (digital signal processing) The number of times an analog signal is measured (sampled) per second. The unit of sample rate is "samples per second". This is often expressed in kiloHertz (kHz). For example, "CD quality" sound has a sample rate of 44 kHz. Compare data rate. See Nyquist frequency.
- sample room — a room, as in a hotel suite, in which merchandise is displayed for sale to the trade.
- scrap metal — discarded metal
- sea lamprey — a parasitic marine lamprey, Petromyzon marinus, that spawns in fresh water along both Atlantic coasts and in the Great Lakes, where it is responsible for losses of economically valuable fish.
- seismograph — any of various instruments for measuring and recording the vibrations of earthquakes.
- semelparous — (of a plant) producing flowers and fruit only once before dying
- semipopular — relatively popular; quite popular
- semiprivate — having some degree of privacy but not fully private, as a hospital room with fewer beds than a ward.
- sempiternal — everlasting; eternal.
- septemviral — of or relating to septemvirs or a septemvirate.
- smart phone — a device that combines a cell phone with a handheld computer, typically offering Internet access, data storage, email capability, etc.
- spectrogram — a representation or photograph of a spectrum.
- speechmaker — a person who delivers speeches.
- sperm whale — a large, square-snouted whale, Physeter catodon, valued for its oil and spermaceti: now reduced in number and rare in some areas.
- spermaphyte — the placenta of a plant
- spermatheca — a small sac or cavity in female or hermaphroditic invertebrates used to store sperm for fertilizing eggs, as in the queen bee.
- spermatoxic — (of a substance) toxic to spermatozoa.
- spermatoxin — a substance toxic to spermatozoa.
- spermatozoa — one of the minute, usually actively motile gametes in semen, which serve to fertilize the ovum; a mature male reproductive cell.
- spermicidal — that kills sperm
- sphaeridium — a round body found on sea urchins
- spot market — a market in which commodities, as grain, gold, or crude oil, are dealt in for cash and immediate delivery (distinguished from futures market).