0%

20-letter words starting with a

  • advertising campaign — An advertising campaign is a planned series of advertisements.
  • african green monkey — a common savanna monkey, Cercopithecus aethiops sabaeus, of West Africa, with a greenish-gray back and yellow tail.
  • africanized honeybee — killer bee.
  • after the fashion of — like; similar to
  • after-dinner speaker — person paid to make an entertaining speech at a formal dinner
  • after-hours drinking — drinking in a pub after its legal closing time
  • agricultural college — a college of further education where students learn farming skills
  • agricultural run-off — the portion of rainfall that runs over agricultural land and then into streams as surface water rather than being absorbed into ground water or evaporating
  • aids-related complex — a condition that may develop into AIDS, characterized by the enlargement of the lymph nodes
  • air consignment note — a nonnegotiable shipping document evidencing the contract between shipper and air carrier for transportation and delivery of cargo. Abbreviation: AWB.
  • air-raid precautions — measures taken to protect the public from air-raid attacks
  • alaska standard time — a standard time used in the zone which includes all of Alas. except the W Aleutian Islands, corresponding to the mean solar time of the 135th meridian west of Greenwich, England: it is nine hours behind Greenwich time
  • alcoholics anonymous — an association of alcoholics who try, esp by mutual assistance, to overcome alcoholism
  • alexandra feodorovna — 1872–1918, empress of Russia (wife of Nicholas II).
  • alfred hermann fried — Alfred Hermann [al-frid hur-muh n;; German ahl-freyt her-mahn] /ˈæl frɪd ˈhɜr mən;; German ˈɑl freɪt ˈhɛr mɑn/ (Show IPA), 1864–1921, Austrian writer and journalist: Nobel Peace Prize 1911.
  • algebraic expression — a symbol or a combination of symbols used in algebra, containing one or more numbers, variables, and arithmetic operations: how to solve algebraic expressions.
  • algorithmic language — ALGOL 60
  • alkaline earth metal — any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table
  • alkaline phosphatase — a phosphatase active in an alkaline medium.
  • alkaline-earth metal — any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals.
  • all part of the game — If you say that something is all part of the game, you are telling someone not to be surprised or upset by something, because it is a normal part of the situation that they are in.
  • all-ordinaries index — an index of share prices on the Australian Stock Exchange giving a weighted arithmetic average of 245 ordinary shares
  • alpha-naphthyl group — naphthyl group (def 1).
  • alternative comedian — someone who practises alternative comedy
  • alternative medicine — treatments: homeopathic
  • alternative question — a question that offers the listener a choice of two or more alternatives and is characterized by rising intonation on each alternative except for the final one, which has falling intonation, as Would you like coffee, tea, or soda?
  • aluminum borohydride — a volatile liquid, Al(BH 4) 3 , that ignites spontaneously in air and reacts vigorously with water to form hydrogen, used chiefly in organic synthesis.
  • amana church society — a Christian community in Iowa governed by elders, with no ordained clergy: founded in Germany in 1714, in America since 1843
  • amateur packet radio — (communications)   (PR) The use of packet radio by amateurs to communicate between computers. PR is a complete amateur radio computer network with "digipeaters" (relays), mailboxes (BBS) and other special nodes. In Germany, it is on HF, say, 2m (300 and 1200 BPS), 70cm (1200 to 9600 BPS), 23cm (normally 9600 BPS and up, currently most links between digipeaters) and higher frequencies. There is a KW (short wave) Packet Radio at 300 BPS, too. Satellites with OSCAR (Orbiting Sattelite Carring Amateur Radio) transponders (mostly attached to commercial satellites by the AMateur SATellite (AMSAT) group) carry Packet Radio mailboxes or digipeaters. There are both on-line and off-line services on the packet radio network: You can send electronic mail, read bulletins, chat, transfer files, connect to on-line DX-Clusters (DX=far distance) to catch notes typed in by other HAMs about the hottest international KW connections currently coming up (so you can pile up). PR uses AX.25 (an X.25 derivative) as its transport layer and sometimes even TCP/IP is transmitted over AX.25. AX.25 is like X.25 but the adressing uses HAM "calls" like "DG8MGV". There are special "wormholes" all over the world which "tunnel" amateur radio traffic through the Internet to forward mail. Sometimes mails travels over satelites. Normally amateur satellites have strange orbits, however the mail forwarding or mailbox satellites have very predictable orbits. Some wormholes allow HAMs to bridge from Internet to AMPR-NET, e.g. db0fho.ampr.org or db0fho.et-inf.fho-emden.de, but only if you are registered HAM. Because amateur radio is not for profit, it must not be interconnected to the Internet but it may be connected through the Internet. All people on the (completely free) amateur radio net must be licensed radio amateurs and must have a "call" which is unique all over the world. There is a special domain AMPR.ORG (44.*.*.*) for amateur radio reserved in the IP space. This domain is split between countries, which can further subdivide it. For example 44.130.*.* is Germany, 44.130.58.* is Augsburg (in Bavaria), and 44.130.58.20 is dg8mgv.ampr.org (you may verify this with nslookup). Mail transport is only one aspect of packet radio. You can talk interactively (as in chat), read files, or play silly games built in the Packet Radio software. Usually you can use the autorouter to let the digipeater network find a path to the station you want. However there are many (sometimes software incompatible) digipeaters out there, which the router cannot use. Paths over 1000 km are unlikely to be useable for real-time communication and long paths can introduce significant delay times (answer latency). Other uses of amateur radio for computer communication include RTTY (baudot), AMTOR, PACTOR, and CLOVER.
  • ambient air standard — the highest concentration of a specific air pollutant at a particular outdoor location, in a specified unit of time, that is not considered hazardous to humans: The ambient air standard for gas X is 3 parts per million per hour.
  • ambulatory care unit — a part of hospital where treatment is given to non-resident patients
  • amelia jenks bloomer — Amelia Jenks [jengks] /dʒɛŋks/ (Show IPA), 1818–94, U.S. social reformer and women's-rights leader.
  • american globeflower — a plant, Trollius laxus, of the buttercup family, of the northeastern and Great Lakes coastal areas of the U.S., having solitary, yellowish-green flowers.
  • american labor party — a U.S. political party (1936–56) organized in New York City to gain independent political status for the labor and liberal factions of the Democratic Party.
  • amicus usque ad aras — a friend to the last degree.
  • ammonium bicarbonate — a white, crystalline, water-soluble solid, NH 4 HCO 3 , used chiefly in the manufacture of baking powder.
  • ammonium chrome alum — chrome alum (def 1).
  • ammonium thiocyanate — a colorless, crystalline, deliquescent, water-soluble solid, CH 4 N 2 S, used chiefly as a herbicide and as a fixative in textile printing.
  • ammonium thiosulfate — a white, crystalline, water-soluble solid, (NH 4) 2 S 2 O 3 , used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
  • amplitude modulation — one of the principal methods of transmitting audio, visual, or other types of information using radio waves, the relevant signal being superimposed onto a radio-frequency carrier wave. The frequency of the carrier wave remains unchanged but its amplitude is varied in accordance with the amplitude of the input signal
  • ampulla of lorenzini — any of an array of electroreceptors in the head of sharks, skates, and rays capable of detecting weak electrical signals produced by muscular activity in other creatures.
  • analysis of variance — any of a number of techniques for resolving the observed variance between sets of data into components, esp to determine whether the difference between two samples is explicable as random sampling variation with the same underlying population
  • analytical chemistry — a branch of chemistry that deals with the identification of compounds and mixtures (qualitative analysis) or the determination of the proportions of the constituents (quantitative analysis): techniques commonly used are titration, precipitation, spectroscopy, chromatography, etc.
  • anatomical pathology — the branch of pathology dealing with the morphologic changes in the tissues, both gross and microscopic; pathological anatomy.
  • anatomically correct — having representations of the sexual organs: An anatomically correct doll was shown to the witness.
  • anglo-egyptian sudan — territory jointly administered by Egypt & Great Britain (1899-1956)
  • anglo-venetian glass — glassware made in England from the late 16th to the late 17th centuries in imitation of Venetian models.
  • angoumois grain moth — a gelechiid moth, Sitotroga cerealella, the larvae of which feed on stored corn and other grains.
  • angular acceleration — the rate of change of angular velocity
  • angular displacement — the angle through which a point, line, or body is rotated about a specific axis in a given direction
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?