Coherence meaning

kō-hîrəns, -hĕr-
The quality or state of cohering, especially a logical, orderly, and aesthetically consistent relationship of parts.
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The definition of coherence is something logical or consistent and something that makes sense as a whole.

An example of coherence is an argument that has no inconsistencies.

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The quality of being logically integrated, consistent, and intelligible; congruity.

His story lacked coherence.

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(physics) That property of a set of waves or sources of waves in which the oscillations maintain a fixed relationship to each other.
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The act or condition of cohering; cohesion.
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His arguments lacked coherence.

noun
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From the Latin co- (together) and haerere (to stick), translating as sticking together. 1. The property of a set of electromagnetic waves, consistently similar in terms of a feature such as polarization or phase. Signals consistently synchronized in phase are characterized by oscillations that maintain a fixed relationship, with the sine waves rising and falling in unison. See also phase, polarization, and sine wave. 2. The property of a light source that fires within a narrow range of wavelengths, ideally only one, so that all photons act identically. See also wavelength and window.
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A property holding for two or more waves or fields when each individual wave or field is in phase with every other one. Lasers, for example, emit almost perfectly coherent light; all the photons emitted by a laser have the same frequency and are in phase. Since quantum states can be described by a wave equation , coherence can hold for quantum states in general, though only among bosons . Coherence is generally possible in physical systems that may undergo superposition . Maintaining coherence of light is important in fiber optic communications.
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Quality of cohering; of being coherent; internal consistency.
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(linguistics) Semantic relationship between different parts of the same text.
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(physics, of waves) The property of having the same wavelength and phase.
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(physics) The property of being coherent, as of waves.
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Origin of coherence

  • From Middle French coherence, from Latin cohaerentia.

    From Wiktionary