# dissipation

/ˌdɪsɪˈpeɪʃən/ (US) · /dˌɪsɪpˈeɪʃən/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/dissipation
Updated: 2026-05-25

## Definition

the process of energy or heat spreading out and being lost to the surroundings. In physics, it often describes how a wave or signal weakens as it moves through a medium.

For teachers: the process of energy, heat, or matter being dispersed or lost to the environment. In a physical context, it refers to the reduction in the amplitude of a wave or signal as it propagates through a medium.

## Examples

- The dissipation of heat is important for cooling electronic devices.
- Engineers must account for the dissipation of energy in the transmission lines to ensure the signal remains strong at the receiver.
- The rapid dissipation of the storm's energy over the cold ocean waters prevented it from reaching the mainland with its full force.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.