noun
- any of several insecticidal compounds found naturally in chrysanthemum flowers, used in pesticides and insect repellents
Usage: often used in plural form 'pyrethrins'; technical/scientific term
Examples
- Pyrethrins are extracted from chrysanthemum flowers and used in organic pesticides.
- Many natural insect sprays contain pyrethrins as their active ingredient.
- The farmer chose a pyrethrin-based insecticide to protect his crops.
- Pyrethrins break down quickly in sunlight, making them environmentally friendly.
- Pet owners often use pyrethrin products to control fleas on their animals.