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A characteristic of laser light, in which all light waves are aligned and move in phase. This characteristic, along with collimation and monochromatism, defines the unique characteristics of laser light.
[L. cohaerentia, a sticking together, fr. co- (for cum), with, together, + haereo, to stick]
1 the property of sticking together, as the molecules within a common substance.
2 (in psychology) the logical pattern of expression and thought evident in the speech of a normal, stable individual. coherent, adj.
coherenceAn MRI term for the integrated relationship between oscillating waves or rotating objects.
Property of electromagnetic waves to remain in phase, the maxima and minima of all waves being coincident.