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dipole

Line breaks: di¦pole
Pronunciation: /ˈdʌɪpəʊl
 
/

Definition of dipole in English:

noun

1 Physics A pair of equal and oppositely charged or magnetized poles separated by a distance.
Example sentences
  • The succeeding positive slope arises due to the orientation of the headgroup dipoles.
  • Interaction between the in-plane components of the headgroup dipoles is attractive and decays as the inverse sixth power of distance.
  • Dielectric constants of nonpolar solvents arise from induced dipoles.
1.1 Chemistry A molecule in which a concentration of positive electric charge is separated from a concentration of negative charge.
Example sentences
  • The relative magnitudes of the molecular dipoles can be explained by the relative electronegativity differences of the atoms forming the bonds.
  • In this way, temporary dipoles are propagated through a liquid or solid.
  • If there is a separation of charge in an bond, it possesses a dipole.
2An aerial consisting of a horizontal metal rod with a connecting wire at its centre.
Example sentences
  • These methods allow engineers to fabricate many different types of planar IR antennas, including dipoles, spirals, and patches.
  • One of the simplest feeds for a microwave antenna is the dipole.
  • The loss of the helical spring antenna is approximately 10 dB compared to a half-wave dipole.

Derivatives

dipolar

1
adjective
Example sentences
  • The spatial proximities between labels are determined by heteronuclear dipolar couplings, which are measured by rotational-echo double resonance (Gullion and Schaefer, 1989 ab).
  • This expression was summed over a Gaussian distribution of dipolar couplings corresponding to a distribution of isolated 13 C- 19 F spin pairs.
  • Almost certainly it involves the strongly dipolar properties of the interfacial tryptophans that are present in both the [beta] 6.3 and [arrow up] [arrow down] [beta] 7.2 structures.

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