dispersion
/dis'pə:ʃn/
Definition
Noun: 1. The act or process of spreading things or people over a wide area, or of becoming spread in this way. This refers to the action of causing something to separate and go in different directions. 2. The state of being dispersed; the spatial or geographic property of being scattered over a range, area, or volume. This describes the resulting pattern or arrangement of things that are spread apart. 3. (Physics) The separation of light or other radiation into components with different wavelengths, such as a spectrum of colors. This is a specific scientific usage.
Usage and Examples
- General Act of Spreading/Scattering:
- The dispersion of the protesters was carried out by the police.
- The rapid dispersion of the crowd prevented a stampede.
- State of Being Scattered:
- The dispersion of the population across the island makes service delivery difficult.
- We studied the dispersion of plant species in the rainforest.
- Scientific/Technical Context:
- A prism causes the dispersion of white light into a rainbow of colors.
- Statistical analysis measured the dispersion of data points around the mean.
Advanced Usage and Nuances
- "Dispersion forces": (Chemistry) Weak intermolecular forces arising from temporary dipoles in atoms or molecules.
- London dispersion forces contribute to the boiling points of noble gases.
- "Index of dispersion": (Statistics) A measure used to assess whether observed data is clustered or dispersed compared to a statistical model.
- Used in fields like ecology (), optics (), statistics (), and sociology ().
Variants and Related Words
- Disperse (verb): To spread or distribute over a wide area; to scatter.
- The wind helped to disperse the seeds.
- Dispersal (noun): Often synonymous with "dispersion," especially referring to the act or process.
- The dispersal of pollen is essential for plant reproduction.
- Dispersive (adjective): Tending to disperse; causing dispersion.
- The material has strong dispersive properties.
Synonyms
- Scattering: The act of moving or causing to move in different directions.
- Diffusion: The spreading of something more widely, especially particles, information, or culture.
- Dissemination: The act of spreading information or ideas widely.
- Distribution: The way in which something is shared or spread over an area.
Antonyms
- Concentration: The action of gathering or focusing in one place.
- Aggregation: The formation of a number of things into a cluster.
- Accumulation: The gathering or amassing of things over time.
Related Phrases and Compounds
- Dispersion relation: (Physics) The relationship between the wavelength (or wavenumber) and frequency of a wave in a medium.
- Measure of dispersion: (Statistics) A descriptive statistic (like range, variance, standard deviation) that quantifies how spread out a set of data is.
Noun
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the act of dispersing or diffusing something
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the dispersion of the troops
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the diffusion of knowledge
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the spatial or geographic property of being scattered about over a range, area, or volume
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worldwide in distribution
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the distribution of nerve fibers
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in complementary distribution
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spreading widely or driving off
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