Definition

A type of synthetic chemical that is similar to a natural insecticide and is used to kill insects.

Example

Farmers often use pyrethroids to protect their crops from pests.

Conversation

Have you ever heard of pyrethroid insecticides?

Yeah, I think they’re used in a lot of garden sprays.

Exactly! They’re really effective against pests without being too harsh.

That makes sense. I might consider using them for my plants.

Synonyms & Antonyms

Root Explanation

Pyrethroid → It is formed from "pyrethrum" (from Greek "purithron", meaning a type of chrysanthemum used for insecticide) and "-oid" (meaning resembling or like). The word "pyrethroid" refers to substances that resemble or are derived from pyrethrum, which is used as an insecticide.

Memory Tip

Think of 'pyrethrum', a flower used for insecticides, and remember that 'pyrethroid' means something that resembles that flower's insect-repelling properties.

Visually Confused Words