Definition of Pyrethrum in English :

Define Pyrethrum in English

Pyrethrum meaning in English

Meaning of Pyrethrum in English

Pronunciation of Pyrethrum in English

Pyrethrum pronunciation in English

Pronounce Pyrethrum in English

Pyrethrum

see synonyms of pyrethrum

Noun

1. pyrethrum

made of dried flower heads of pyrethrum plants

2. chrysanthemum cinerariifolium, dalmatia pyrethrum, dalmatian pyrethrum, pyrethrum, tanacetum cinerariifolium

white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum

3. chrysanthemum coccineum, painted daisy, pyrethrum, tanacetum coccineum

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

4. genus pyrethrum, pyrethrum

used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum

WordNet Lexical Database for English. Princeton University. 2010.


Pyrethrum

see synonyms of pyrethrum
noun
1. 
any of several cultivated Eurasian chrysanthemums, such as Chrysanthemum coccineum and C. roseum, with white, pink, red, or purple flowers
2. 
any insecticide prepared from the dried flowers of any of these plants, esp C. roseum

Collins English Dictionary. Copyright © HarperCollins Publishers


Pyrethrum

see synonyms of pyrethrum
noun
1. 
a perennial plant (Chrysanthemum coccineum) of the composite family, widely grown for the white, pink, red, or purple flower heads
2. 
an insecticide made from the dried flower heads of several Old World chrysanthemums, esp. a species (Chrysanthemum cinerariaefolium) now grown extensively in the U.S.

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


Pyrethrum

see synonyms of pyrethrum
n.
1.
a. A Eurasian perennial plant (Tanacetum coccineum) in the composite family, cultivated for its colorful flower heads and formerly used as a source of an insecticide. Also called painted daisy.
b. A closely related perennial plant (Tanacetum cinerariifolium), commercially cultivated as the source of an insecticide.
2. An insecticide made from the dried flower heads of any of these plants.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.