18-letter words containing tr
- abstract data type — (programming) (ADT) A kind of data abstraction where a type's internal form is hidden behind a set of access functions. Values of the type are created and inspected only by calls to the access functions. This allows the implementation of the type to be changed without requiring any changes outside the module in which it is defined. A classic example of an ADT is a stack data type for which functions might be provided to create an empty stack, to push values onto a stack and to pop values from a stack.
- administrative law — law relating to the control of government power
- african tulip tree — a tropical African evergreen tree, Spathodea campaulata, with pinnate leaves, split pods, winged seeds, and large red flowers.
- agro-industrialize — to industrialize the agriculture of: to agro-industrialize a developing nation.
- algebraic geometry — the study of sets that are defined by algebraic equations.
- alternate straight — a hand consisting of five cards following one another by two in order of denomination, as a five, seven, nine, jack, and king, being of special value in certain games.
- alumina trihydrate — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- anthropocentricity — the state or quality of being anthropocentric.
- arbitration clause — a clause in a contract laying down that disputes between the parties should be settled by arbitration
- arsenic trisulfide — a yellow or red crystalline substance, As 2 S 3 , occurring in nature as the mineral orpiment, and used as a pigment (king's yellow) and in pyrotechnics.
- astrological chart — map of constellations at certain time
- astrometric binary — a binary star that can be recognized as such because of its undulating proper motion.
- astronomical clock — a complex clock showing astronomical phenomena, such as the phases of the moon
- asymmetric warfare — warfare in which opposing groups or nations have unequal military resources, and the weaker opponent uses unconventional weapons and tactics, as terrorism, to exploit the vulnerabilities of the enemy.
- attribution theory — the theory that tries to explain how people link actions and emotions to particular causes, both internal and external
- australian doubles — an unusual formation in doubles in which the server's partner is positioned on the same side of the court as the server.
- australian terrier — a small wire-haired breed of terrier similar to the cairn
- australopithecines — Plural form of australopithecine.
- autogenic training — a technique for reducing stress through mental exercises to produce physical relaxation
- automatic tracking — a radar tracking system in which an automatic device uses the echo signal from the tracked object to keep the radar constantly beamed on target and to compute the range of the object.
- bilateral symmetry — the property of an organism or part of an organism such that, if cut in only one plane, the two cut halves are mirror images of each other
- bioinstrumentation — the use of instruments, as sensors, to detect and measure certain body functions, as of persons in spaceflight, and transmit the data to a point where it is evaluated
- biological control — the control of destructive organisms by the use of other organisms, such as the natural predators of the pests
- bipolar transistor — (electronics) A transistor made from a sandwich of n- and p-type semiconductor material: either npn or pnp. The middle section is known as the "base" and the other two as the "collector" and "emitter". When used as an amplifying element, the base to emitter junction is in a "forward-biased" (conducting) condition, and the base to collector junction is "reverse-biased" or non-conducting. Small changes in the base to emitter current (the input signal) cause either holes (for pnp devices) or free electrons (for npn) to enter the base from the emitter. The attracting voltage of the collector causes the majority of these charges to cross into and be collected by the collector, resulting in amplification. Contrast field effect transistor.
- birth control pill — an oral contraceptive for women, containing the hormones estrogen and progesterone or progesterone alone, that inhibits ovulation, fertilization, or implantation of a fertilized ovum, causing temporary infertility.
- birth-control pill — an oral contraceptive for women, containing the hormones estrogen and progesterone or progesterone alone, that inhibits ovulation, fertilization, or implantation of a fertilized ovum, causing temporary infertility.
- bottom dead centre — the position of the crank of a reciprocating engine when the piston is at its nearest point to the crankshaft
- branch instruction — a machine-language or assembly-language instruction that causes the computer to branch to another instruction
- breach of contract — the act of breaking the conditions of a contract
- brightness control — a control that enables the brightness of the image on a television screen, computer monitor, etc to be adjusted
- bullnose stretcher — bull stretcher (def 1).
- bullnose-stretcher — Also called bullnose stretcher. a brick having one of the edges along its length rounded for laying as a stretcher in a sill or the like.
- can't take a trick — to be consistently unsuccessful or unlucky
- castration complex — an unconscious fear of having one's genitals removed, as a punishment for wishing to have sex with a parent
- catastrophe theory — a mathematical theory that classifies surfaces according to their form
- center of symmetry — a point within a crystal through which any straight line extends to points on opposite surfaces of the crystal at equal distances.
- central government — the government of a state or country
- central projection — a projection of one plane onto a second plane such that a point on the first plane and its image on the second plane lie on a straight line through a fixed point not on either plane.
- centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
- centre of pressure — the point in a body at which the resultant pressure acts when the body is immersed in a fluid
- centrifugal clutch — an automatic clutch in which the friction surfaces are engaged by weighted levers acting under centrifugal force at a certain speed of rotation
- chicken tetrazzini — diced chicken in a cream sauce, baked in a casserole with noodles and cheese, usually flavored with sherry.
- chrétien de troyes — 12th century, French poet, who wrote the five Arthurian romances Erec; Cligès; Lancelot, le chevalier de la charette; Yvain, le chevalier au lion; and Perceval, le conte del Graal (?1155–?1190), the first courtly romances
- chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
- cicatricial tissue — scar tissue.
- claustrophobically — In a claustrophobic way.
- cleopatra's needle — either of two Egyptian obelisks, originally set up at Heliopolis about 1500 bc: one was moved to the Thames Embankment, London, in 1878, the other to Central Park, New York, in 1880
- color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
- compression stroke — The compression stroke is the stroke in an engine in which the air or air/fuel mixture is compressed before ignition.
- concentration camp — A concentration camp is a prison in which large numbers of ordinary people are kept in very bad conditions, usually during a war.
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