incoherent

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in·co·her·ent

(in'kō-hēr'ent),
Not coherent; disjointed; confused; denoting a lack of connectedness or organization of parts during verbal expression.
[L. in- neg. + co-haereo, pp. -haesus, to cling together, fr. haereo, to stick]
Farlex Partner Medical Dictionary © Farlex 2012

incoherent

(ĭn″kō-hē′rĕnt)
Not coherent or understandable.
Medical Dictionary, © 2009 Farlex and Partners

coherent sources 

If light beams from two independent sources reach the same point in space, there is no fixed relationship between the phases of the two light beams and they will not combine to form interference effects. Such light waves are called incoherent. If, on the other hand, the two light beams are superimposed after reaching the same point by different paths but are both radiated from one point of a source, interference effects will be seen because the phase difference in the two beams is constant. The two virtual sources from which these two beams are apparently coming are called coherent sources and any rays in which there is a constant phase difference are called coherent rays. Prior to the advent of the laser, the only way in which one could obtain coherent rays was by dividing the light coming from a point source into two parts. See Young's experiment; holography; clinical maxwellian view system; optical coherence tomography.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
Dans son analyse, le Pr Bouabdallah a estime que la politique commerciale de l'Algerie avait souffert d'"incoherence" relevant que "la preuve de cette assertion est la dependance accrue a l'egard des importations, resultat contraire a la politique de substitution d'importation pronee ouvertement ou indirectement".
One cannot say that coherence is restored, since the point of the demonstration is the incoherence, but that for the first time we can understand how Shelley's political and psychological preoccupations inform his work.
Most of us, Sedgwick thinks, hold both of these views simultaneously, despite the fact that they comprise what she calls "irreducible incoherence:' What interests Sedgwick isn't the epistemological oddity of the situation but its social effects.
Le compte rendu du ministre du Commerce a permis de mettre en exergue "les incoherences qui caracterisent le fonctionnement de certaines filieres dont les produits sont eligibles a l'exportation", note le communique.
Nous allons reflechir aux problemes que posent ces incoherences a la gestion de la ville lors d'un seminaire qui se tiendra avant la fin fevrier prochain [beaucoup plus grand que], a precise le president de la commission urbanisme et habitat de l'APW, Abdelkader Safi, lors d'une reunion au Centre de recherche en astronomie, astrophysique et geophysique (Craag) de Bouzareah.
There is excellent work on recognizing deficient theories in terms of logical inconsistency, self-referential incoherence, self-assumptive incoherence, and self-performative incoherence (pp.