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Definitions and Synonyms of pyrethrum | Another word for pyrethrum | What is pyrethrum?

Definition 1: used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum - [noun denoting plant]

Synonyms for pyrethrum in the sense of this definition

(pyrethrum is a kind of ...) genus of more or less advanced dicotyledonous herbs and some trees and shrubs

(... is a member of pyrethrum) plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia

Definition 2: 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 - [noun denoting plant]

Synonyms for pyrethrum in the sense of this definition

(pyrethrum is a kind of ...) a plant cultivated for its blooms or blossoms

(... is a member of pyrethrum) a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum

Definition 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 - [noun denoting plant]

Synonyms for pyrethrum in the sense of this definition

(pyrethrum is a kind of ...) a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

(... is a member of pyrethrum) a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum

Definition 4: made of dried flower heads of pyrethrum plants - [noun denoting plant]

(pyrethrum is a kind of ...) a chemical used to kill insects

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