1. A plant of the daisy family, native to southeastern Europe and western Asia, with feathery leaves and white, pink, or red flowers.
Usage: Often used in gardening and horticulture contexts.
2. An insecticide derived from the dried flowers of pyrethrum plants, used to kill insects.
Usage: Also called pyrethrin; commonly used in organic pest control.

Examples

• The gardener planted pyrethrum flowers along the border to add color.
• Pyrethrum is a natural insecticide that has been used for centuries.
• Many organic farmers prefer pyrethrum because it breaks down quickly in the environment.
• The bright red pyrethrum blooms attracted butterflies to the garden.
• Pyrethrum powder can be dusted directly on plants to control aphids and other pests.
• She grew pyrethrum in her vegetable garden as a companion plant.