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Dipole

[dahy-pohl]

noun

Physics, Electricity. a pair of electric point charges or magnetic poles of equal magnitude and opposite signs, separated by an infinitesimal distance.

Physical Chemistry. a polar molecule.

Also called dipole antenna. 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.

Origin:
1910–15; di-¹ + pole²

Related forms

di·po·lar, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dipole is always a great word to know.

So is absorption. Does it mean:

a wave in which the direction of displacement is perpendicular to the direction of propagation, as a surface wave of water

the removal of energy or particles from a beam by the medium through which the beam propagates

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Collins

World English Dictionary

dipole (ˈdaɪˌpəʊl)

—n
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 called: dipole 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

di'polar

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Dictionary.com's 21st Century Lexicon

Main Entry:	dipole
Part of Speech:	n
Definition:	See polar molecule

American Heritage

Science Dictionary

dipole (dī'pōl') Pronunciation Key

A pair of electric charges or magnetic poles, of equal magnitude but of opposite sign or polarity, separated by a small distance.
A molecule having two such charges or poles.
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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nonpolar phased array polar molecule polarization

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Dipole

di·pole