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18-letter words containing a, c, r, i

  • american brooklime — any of various speedwells found along brooks, in marshes, etc., as Veronica americana (American brooklime) a creeping plant having leafy stems and loose clusters of small blue flowers.
  • american chameleon — anole: lizards of this type (family Iguanidae) are incorrectly called “chameleons”
  • american civil war — the war in the U.S. between the North and the South, 1861–65.
  • american cockroach — a large, reddish-brown cockroach, Periplaneta americana, found originally in the southern U.S. but now widely distributed.
  • american cranberry — See under cranberry (def 1).
  • ammonium carbamate — a white soluble crystalline compound produced by reaction between dry ammonia and carbon dioxide and used as a nitrogen fertilizer. Formula: (NH4)CO2NH2
  • ammonium carbonate — an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH4)HCO3.(NH4)CO2NH2
  • an overgrown child — an adult whose behaviour is characteristic of a child
  • analogue recording — a sound recording process in which an audio input is converted into an analogous electrical waveform
  • analytical reagent — a chemical compound of a known high standard of purity
  • angiocardiographic — Relating to angiocardiography.
  • anthropocentricity — the state or quality of being anthropocentric.
  • anti-aircraft fire — the discharging of weapons, artillery, etc aimed at destroying enemy aircraft
  • anti-commercialism — the principles, practices, and spirit of commerce.
  • anti-masonic party — a former political party (1826–35) that opposed Freemasonry in civil affairs.
  • anticholinesterase — any of a group of substances that inhibit the action of cholinesterase
  • anticipated profit — the profit that one expects to make from a deal, transaction, or project
  • antidiscrimination — (legal) Opposing or disallowing discrimination.
  • antifriction alloy — a metallic alloy, as Babbitt metal or bearing bronze, having antifriction qualities.
  • antiscorbutic acid — vitamin C
  • aorangi-mount cook — the official name for Mount Cook
  • appalachian spring — a dance (1944) choreographed by Martha Graham, with musical score by Aaron Copland.
  • apparatus criticus — textual notes, list of variant readings, etc, relating to a document, esp in a scholarly edition of a text
  • application server — 1. A designer's or developer's suite of software that helps programmers isolate the business logic in their programs from the platform-related code. Application servers can handle all of the application logic and connectivity found in client-server applications. Many application servers also offer features such as transaction management, clustering and failover, and load balancing; nearly all offer ODBC support. 2. Production programs run on a mid-sized computer that handle all application operations between browser-based computers and an organisation's back-end business applications or databases. The application server works as a translator, allowing, for example, a customer with a browser to search an online retailer's database for pricing information. 3. The device on which application server software runs. Application Service Providers offer commercial access to such devices.
  • apprentice plumber — a trainee plumber
  • arachibutyrophobia — Fear of peanut butter sticking to the roof of one's mouth.
  • arbitration clause — a clause in a contract laying down that disputes between the parties should be settled by arbitration
  • arctic archipelago — group of mostly large islands in the Arctic Ocean off the N coast of Canada
  • aristotelian logic — the logical theories of Aristotle as developed in the Middle Ages, concerned mainly with syllogistic reasoning: traditional as opposed to modern or symbolic logic
  • arkansas toothpick — a bowie knife or similar sharp knifelike implement.
  • arm's-length price — a price of a transaction agreed in accordance with market values, disregarding any connection such as common ownership of the companies involved
  • army of occupation — an army that goes into a defeated country to enforce peace terms, keep order, etc.
  • 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.
  • artificial gravity — a simulated gravity or sensation of weight established within a spacecraft by means of the craft's rotation, acceleration, or deceleration.
  • artificial horizon — an aircraft instrument, using a gyroscope, that indicates the aircraft's attitude in relation to the horizontal
  • artificial reality — virtual reality.
  • asciibetical order — (jargon, programming)   /as'kee-be'-t*-kl or'dr/ Used to indicate that data is sorted in ASCII collated order rather than alphabetical order. The main difference is that, in ASCII, all the upper case letters come before any of the lower case letters so, e.g., "Z" comes before "a".
  • asiatic black bear — a bear, Selenarctos thibetanus, of central and E Asia, whose coat is black with a pale V-shaped mark on the chest
  • aspherical surface — a lens or mirror surface that does not form part of a sphere and is used to reduce aberrations
  • associate director — a person who is joined with one or more other directors in an enterprise, business, etc, having equal or nearly equal status
  • association cortex — any of the regions of the cerebral cortex of the brain connected by numerous nerve fibers to all parts of both cerebral hemispheres and coordinating such higher activities as learning and reasoning.
  • associative cortex — the part of the cortex that does not have direct connections to the senses or motor system and is thought to be involved in higher mental processes
  • associative memory — content addressable memory
  • ast research, inc. — (company)   A company, formed some time before 1980, that was a leading personal computer manufacturer. AST developed desktop computers, mobile computers, and servers that were sold in more than 100 countries worldwide. In January 1999 the name and intellectual property were acquired by a new company named AST Computers, LLC. As of 2000-03-02 it was trading as ARI Service.
  • 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.
  • asymptotic freedom — a property of the force between quarks, according to quantum chromodynamics, such that they behave almost like free particles when they are close together within a hadron.
  • asynchronous logic — (architecture)   A data-driven circuit design technique where, instead of the components sharing a common clock and exchanging data on clock edges, data is passed on as soon as it is available. This removes the need to distribute a common clock signal throughout the circuit with acceptable clock skew. It also helps to reduce power dissipation in CMOS circuits because gates only switch when they are doing useful work rather than on every clock edge. There are many kinds of asynchronous logic. Data signals may use either "dual rail encoding" or "data bundling". Each dual rail encoded Boolean is implemented as two wires. This allows the value and the timing information to be communicated for each data bit. Bundled data has one wire for each data bit and another for timing. Level sensitive circuits typically represent a logic one by a high voltage and a logic zero by a low voltage whereas transition signalling uses a change in the signal level to convey information. A speed independent design is tolerant to variations in gate speeds but not to propagation delays in wires; a delay insensitive circuit is tolerant to variations in wire delays as well. The purest form of circuit is delay-insensitive and uses dual-rail encoding with transition signalling. A transition on one wire indicates the arrival of a zero, a transition on the other the arrival of a one. The levels on the wires are of no significance. Such an approach enables the design of fully delay-insensitive circuits and automatic layout as the delays introduced by the layout compiler can't affect the functionality (only the performance). Level sensitive designs can use simpler, stateless logic gates but require a "return to zero" phase in each transition.
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