Definition

Relating to substances that are used to kill or control insects.

Example

Farmers often use insecticidal sprays to protect their crops from pests.

Conversation

I found this insecticidal spray that really works on my garden pests.

Oh, nice! I've been struggling with those too.

You should try it; it’s really effective without harming the plants.

I definitely will! Thanks for the recommendation.

Synonyms & Antonyms

Root Explanation

Insecticidal → It is formed from "insect" (from Latin "insectum", meaning cut into or divided) and "-cidal" (from Latin "caedere", meaning to kill). The word "insecticidal" refers to something that kills insects.

Memory Tip

Think of 'insect' meaning something that is 'cut into' and '-cidal' meaning 'to kill' — that's why insecticidal refers to something that kills insects.

Visually Confused Words