dipole

(redirected from Dipoles)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
Related to Dipoles: dipole moment

dipole

 [di´pōl]
1. a molecule having separated charges of equal and opposite sign.
2. a pair of electric charges or magnetic poles separated by a short distance.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

di·pole

(dī'pōl),
A pair of separated electrical charges, one or more positive and one or more negative; or a pair of separated partial charges.
Synonym(s): doublet (2)
Farlex Partner Medical Dictionary © Farlex 2012

dipole

An MRI term for a magnetic field with unique north and south magnetic poles separated by a finite distance.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

di·pole

(dī'pōl)
A pair of separated electrical charges, one or more positive and one or more negative; or a pair of separated partial charges.
Synonym(s): doublet (2) .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
In comparison with conventional semiconductors, the very close (sub-nanometre) proximity of a ferroelectric's electron dipole moment to the electron gas in the atomic crystal ensures more effective switching, overcoming limitations of conventional semiconductors where the conducting channel is buried tens of nanometres below the surface.
As well as, in the previous article [1], the main attention is devoted to the behavior of the ratio of fields at the tip apex Et and at the surface [E.sub.s], calculated on the basis of the same simple dipole model.
The estimation of the power gathered from the antenna system and being available to the resistor [R.sub.L], in case of one or four dipoles with the DNG slab or in free space, was made considering that each dipole is connected to its own rectifier and using (10).
In the formulas for determining [mathematical expression not reproducible] the quantity [DELTA]V is a sufficiently small volume of the polarizable medium, over which the sums of the corresponding dipole moments are averaged.
Some efficient sources of T[E.sub.z] modes are radial electric dipole or microstrip-like radiating slot, the latter being of more interest for applications in body-centric sensor systems due to its low profile.
In the past, extensive finite element modeling (FEM) of wave propagation signals has been done (by the author and co-authors) using dipole sources (to simulate acoustic emission sources), for example in steel [1] and aluminum [2] plates.
Clavin, "Dipole augmented slot radiating element," U.S.
In design process, the single band is performed when the dipole antenna is radiated.
Ask the students to align the direction of the "N" and "S" ends of the bar magnet and the disc magnet so that the arrangement of the dipole small magnets can be easily drawn in the disc magnet.
Finally, in the case of p distinct dipoles, (2) holds with q(f) and A([theta]) substituted with q(f) = [[[q.sub.1](t), [q.sub.2](t), ..., [q.sub.p](t)].sup.T], and A([theta]) = [[A.sub.1]([theta]),[ .sub.A2]([theta]), ..., [A.sub.p]([theta])], respectively.
Importantly, the above analysis reveals that the dipoles position [r.sub.0] specified by relations (19) is unique only if the recorded values for the coefficients [A.sub.l], l = 1, 2, 3, and [B.sub.k], k = 1, 2, 3, 4, 5, 6, satisfy the following expressions: