# herbicide

/ˈɝbɪˌsaɪd/ (US) · /hˈɜːbɪsˌaɪd/ (UK) · CEFR B2 · Noun

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

## Definition

a chemical used to kill unwanted plants, like weeds. Farmers and gardeners use it to keep their crops or lawns clean.

For teachers: a chemical substance used to kill or inhibit the growth of unwanted plants. Often used in agricultural or horticultural contexts to manage weeds.

## Examples

- The farmer applied an herbicide to the fields to kill the weeds.
- Before planting the new vegetable garden, the gardener used an herbicide to clear the soil of invasive grasses.
- While effective at controlling broadleaf weeds, the specific herbicide must be applied carefully to avoid damaging the surrounding crops or contaminating the local water supply.

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