aerial definition, aerial meaning | English dictionary

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aerial

  

      adj  
1    of, relating to, or resembling air  
2    existing, occurring, moving, or operating in the air  
aerial cable car, aerial roots of a plant     
3    ethereal; light and delicate  
4    imaginary; visionary  
5    extending high into the air; lofty  
6    of or relating to aircraft  
aerial combat     
      n  
7      (Also called)    antenna   the part of a radio or television system having any of various shapes, such as a dipole, Yagi, long-wire, or vertical aerial, by means of which radio waves are transmitted or received  
     (C17: via Latin from Greek aerios, from aer air)  


aerial ladder  
      n      the U.S. and Canadian term for       turntable ladder  
aerial perspective  
      n   a means of indicating relative distance in terms of a gradation of clarity, tone, and colour, esp. blue,   (Also called)    atmospheric perspective  
aerial pingpong  
      n     (Austral)  
slang   Australian Rules football  
aerial top dressing  
      n   the process of spreading lime, fertilizer, etc. over farmland from an aeroplane  
beam aerial  
      n   an aerial system, such as a Yagi aerial, having directional properties,   (Also called (esp. U.S.))    beam antenna  
cloverleaf aerial  
      n   a type of aerial, having three or four similar coplanar loops arranged symmetrically around an axis, to which in-phase signals are fed  
communal aerial   , antenna  
      n   a television or radio receiving aerial from which received signals are distributed by cable to several outlets  
dish aerial  
      n  
1    a microwave aerial, used esp. in radar, radio telescopes, and satellite broadcasting, consisting of a parabolic reflector,   (Formal name)    parabolic aerial     (Often shortened to)    dish  
2       short for       satellite dish aerial     (Also called)    dish antenna  
ferrite-rod aerial  
      n   a type of aerial, normally used in radio reception, consisting of a small coil of wire mounted on a ferrite core, the coil serving as a tuning inductance  
frame aerial  
      n      another name for       loop aerial  
ground-plane aerial  
      n     (Electronics)   a quarter-wave vertical dipole aerial in which the electrical image forming the other quarter-wave section is formed by reflection in a system of radially disposed metal rods or in a conductive sheet  
long-wire aerial  
      n   a travelling-wave aerial consisting of one or more conductors, the length of which usually exceeds several wavelengths  
loop aerial  
      n   an aerial that consists of one or more coils of wire wound on a frame. Maximum radiation or reception is in the plane of the loop, the minimum occurring at right angles to it,   (Sometimes shortened to)    loop     (Also called)    frame aerial  
parabolic aerial  
      n      a formal name for       dish aerial  
rhombic aerial  
      n   a directional travelling-wave aerial, usually horizontal, consisting of two conductors each forming a pair of adjacent sides of a rhombus  
satellite dish aerial  
      n   a parabolic aerial for reception from or transmission to an artificial satellite,   (Often shortened to)    dish aerial, dish  
slot aerial   , antenna  
      n     (Radio)   a transmitting aerial in which the radiating elements are open slots in a surrounding metal sheet  
Yagi aerial  
      n   a sharply directional aerial, used esp. in television and radio astronomy, consisting of three or more elements lying parallel to each other, the principal direction of radiation being along the line of the centres  
     (C20: named after Hidetsugu Yagi (1886--1976), Japanese engineer)  
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