Definition

A chemical that is used to kill insects.

Example

Farmers often use insecticide to protect their crops from pests.

Conversation

I found some ants in the kitchen yesterday.

Oh no! Did you use any insecticide to get rid of them?

Not yet, but I think I should buy some today.

That sounds like a good plan; it should help keep them away.

Synonyms & Antonyms

Root Explanation

Insecticide → It is formed from "insectum" (from Latin, meaning insect) and "caedere" (from Latin, meaning to kill). The word "insecticide" refers to a substance used to kill insects.

Memory Tip

Think of 'insect' as the creature being targeted and 'caedere' meaning to kill — that's why insecticide is a substance that kills insects.

Visually Confused Words