# chemically

/ˈkɛməkɫi/ (US) · /kˈɛmɪkli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/chemically
Updated: 2026-05-07

## Definition

in a way that relates to chemistry or the use of chemicals. You use this to describe how substances react with each other or how a product is made.

For teachers: in a manner relating to chemistry or the properties and reactions of substances. Often used to describe processes of synthesis, alteration, or composition.

## Examples

- The water is chemically treated to make it safe.
- The two substances are chemically identical even though they come from different natural sources.
- Researchers found that the soil had been chemically altered by years of industrial runoff, making it impossible for native plants to thrive without significant remediation.

## Usage notes

- Typically placed before a past participle or adjective to modify the method of a process.

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