Pyrethrum (Noun)
Meaning 1
Made of dried flower heads of pyrethrum plants.
Classification
Nouns denoting plants.
Examples
- Insecticidal powder is made of dried flower heads of pyrethrum plants which have natural insecticidal properties.
- Pyrethrum flowers have been used for centuries to create natural pesticides by drying and crushing their flower heads.
- Commercially available pyrethrum sprays often combine dried pyrethrum flowers with other substances to increase effectiveness.
- In traditional practices, people have made homemade pesticides from the dried flower heads of pyrethrum plants mixed with water or other ingredients.
- Many farmers opt to grow their own pyrethrum plants, dry the flower heads, and mix the dried flowers into natural insect control methods.
Hypernyms
Meaning 2
Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.
Classification
Nouns denoting plants.
Synonyms
Meaning 3
White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.
Classification
Nouns denoting plants.
Synonyms
Hypernyms
Meaning 4
Spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum.
Classification
Nouns denoting plants.