# unsaturated

/ənˈsætʃɝˌeɪtɪd/ (US) · /ʌnsˈætʃəɹˌeɪtɪd/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/unsaturated
Updated: 2026-05-30

## Definition

describing a chemical compound that has double or triple bonds between its atoms. These bonds make the molecule more reactive than a similar one with only single bonds.

For teachers: describing a chemical compound that contains at least one double or triple bond between carbon atoms. Often used in organic chemistry to distinguish from saturated compounds, which have only single bonds.

## Examples

- Olive oil contains many unsaturated fats.
- The chemist tested the sample to determine if the hydrocarbon was unsaturated, which would indicate the presence of double bonds.
- In industrial catalysis, unsaturated hydrocarbons are often preferred because their multiple bonds provide more reactive sites for the formation of complex polymers and plastics.

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