14-letter words containing d, i, t, r, a
- predictability — consistent repetition of a state, course of action, behavior, or the like, making it possible to know in advance what to expect: The predictability of their daily lives was both comforting and boring.
- preestablished — to establish beforehand.
- premeditatedly — done deliberately; planned in advance: a premeditated murder.
- printed matter — any of various kinds of printed material that qualifies for a special postal rate.
- procrastinated — to defer action; delay: to procrastinate until an opportunity is lost.
- promenade tile — a machine-made, unglazed, ceramic floor tile.
- propaedeutical — relating to preliminary instruction; introductory
- propagandistic — a person involved in producing or spreading propaganda.
- providentially — of, relating to, or resulting from divine providence: providential care.
- pseudodipteral — having an arrangement of columns suggesting a dipteral structure but without the inner colonnade.
- pyramid letter — chain letter.
- pyramidologist — a person who believes in pyramidology
- quadrantanopia — (medicine) The loss of vision in one or more quadrants of the field of view.
- quadratic form — a polynomial all of whose terms are of degree 2 in two or more variables, as 5 x 2 − 2 xy + 3 y 2 .
- quadrigeminate — made up of four parts
- quadrilaterals — Plural form of quadrilateral.
- quadrumvirates — Plural form of quadrumvirate.
- quadruple time — a measure consisting of four beats or pulses with accent on the first and third.
- quadruplicated — Simple past tense and past participle of quadruplicate.
- quadruplicates — Plural form of quadruplicate.
- quarter window — (on a car) a small triangular side window with hinges that can be opened for extra ventilation
- quodlibetarian — a person who writes, discusses or engages in quodlibets
- race condition — Anomalous behavior due to unexpected critical dependence on the relative timing of events. For example, if one process writes to a file while another is reading from the same location then the data read may be the old contents, the new contents or some mixture of the two depending on the relative timing of the read and write operations. A common remedy in this kind of race condition is file locking; a more cumbersome remedy is to reorganize the system such that a certain processes (running a daemon or the like) is the only process that has access to the file, and all other processes that need to access the data in that file do so only via interprocess communication with that one process. As an example of a more subtle kind of race condition, consider a distributed chat network like IRC, where a user is granted channel-operator privileges in any channel he starts. If two users on different servers, on different ends of the same network, try to start the same-named channel at the same time, each user's respective server will grant channel-operator privileges to each user, since neither will yet have received the other's signal that that channel has been started. In this case of a race condition, the "shared resource" is the conception of the state of the network (what channels exist, as well as what users started them and therefore have what privileges), which each server is free to change as long as it signals the other servers on the network about the changes so that they can update their conception of the state of the network. However, the latency across the network makes possible the kind of race condition described. In this case, heading off race conditions by imposing a form of control over access to the shared resource -- say, appointing one server to be in charge of who holds what privileges -- would mean turning the distributed network into a centralized one (at least for that one part of the network operation). Where this is not acceptable, the more pragmatic solution is to have the system recognize when a race condition has occurred and to repair the ill effects. Race conditions also affect electronic circuits where the value output by a logic gate depends on the exact timing of two or more input signals. For example, consider a two input AND gate fed with a logic signal X on input A and its negation, NOT X, on input B. In theory, the output (X AND NOT X) should never be high. However, if changes in the value of X take longer to propagate to input B than to input A then when X changes from false to true, there will be a brief period during which both inputs are true, and so the gate's output will also be true. If this output is fed to an edge-sensitive component such as a counter or flip-flop then the temporary effect ("glitch") will become permanent.
- radiant energy — energy transmitted in wave motion, especially electromagnetic wave motion.
- radiant heater — a heater that heats a building by radiant heat emitted from panels containing electrical conductors, hot water, etc
- radiation belt — Van Allen belt.
- radicalization — to make radical or more radical, as in politics: young people who are being radicalized by extremist philosophies.
- radio cassette — A radio cassette is a radio and a cassette player together in a single machine.
- radio operator — a person who operates or controls a radio transmitter
- radio spectrum — the portion of the electromagnetic spectrum that includes radio waves.
- radioacoustics — the science and technology of the production, transmission, and reproduction of sounds carried by radio waves.
- radioautograph — autoradiograph.
- radiobroadcast — a broadcast by radio.
- radiochemistry — the chemical study of radioactive elements, both natural and artificial, and their use in the study of chemical processes.
- radioresistant — resistant to the effects of radiation
- radiosensitive — (of certain tissues or organisms) sensitive to or destructible by various types of radiant energy, as x-rays, rays from radioactive material, or the like.
- radiosensitize — to make (cells) more sensitive to radiation
- radiostrontium — strontium 90.
- radiotelegraph — a telegraph in which messages or signals are sent by means of radio waves rather than through wires or cables.
- radiotelemeter — the equipment used for radiotelemetry
- radiotelemetry — the use of radio waves for transmitting information from a distant instrument to a device that indicates or records the measurements
- radiotelephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radiotelephony — the constructing or operating of radiotelephones.
- radiotherapist — radiologist
- radium sulfate — a white, crystalline, water-insoluble, poisonous, radioactive solid, RaSO 4 , used chiefly in radiotherapy.
- radium therapy — treatment of disease by means of radium.
- railroad track — railway line
- rainbow darter — a stout darter, Etheostoma caeruleum, inhabiting the Great Lakes and Mississippi River drainages, the spawning male of which has the sides marked with oblique blue bars with red interspaces.
- raise the wind — to obtain the necessary funds
- random testing — (programming, testing) A black-box testing approach in which software is tested by choosing an arbitrary subset of all possible input values. Random testing helps to avoid the problem of only testing what you know will work.