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dipole

[ dahy-pohl ]

noun

  1. Physics, Electricity. a pair of electric point charges or magnetic poles pole of equal magnitude and opposite signs, separated by an infinitesimal distance.
  2. Physical Chemistry. a polar molecule.
  3. Also called di·pole an·ten·na [dahy, -pohl an-, ten, -, uh]. Radio, Television. an antenna of a transmitter or receiving set consisting of two equal rods extending in opposite direction from the connection to the lead-in wire.


dipole

/ ˈdaɪˌpəʊl /

noun

  1. two electric charges or magnetic poles that have equal magnitudes but opposite signs and are separated by a small distance
  2. a molecule in which the centre of positive charge does not coincide with the centre of negative charge
  3. Also calleddipole aerial a directional radio or television aerial consisting of two equal lengths of metal wire or rods, with a connecting wire fixed between them in the form of a T
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


dipole

/ pōl′ /

  1. A pair of electric charges or magnetic poles, of equal magnitude but of opposite sign or polarity, separated by a small distance.
  2. A molecule having two such charges or poles.
  3. An antenna consisting of two rods of equal length extending outward in a straight line. Dipole antennas are usually used for frequencies below 30 megahertz.


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Derived Forms

  • diˈpolar, adjective
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Other Words From

  • di·po·lar [dahy-, poh, -ler], adjective
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Word History and Origins

Origin of dipole1

First recorded in 1910–15; di- 1 + pole 2

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dipodydipole moment