Term: large particle
https://doi.org/10.1351/goldbook.L03457

Definition:
A particle with dimensions comparable with the wavelength of the radiation in the medium or larger. In practice a particle must be treated as large if its largest dimension exceeds about one-twentieth of the wavelength employed.

Related Terms:
1) wavelength (http://doi.org/10.1351/goldbook.W06659).

Source: Purple Book, 1st ed., p. 65 (http://old.iupac.org/publications/books/author/metanomski.html)

Citation: 'large particle' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.L03457

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