Background for rotenone
BeDict Logo

rotenone

/ˈroʊtəˌnoʊn/ /ˈroʊtənoʊn/

Meanings
noun
A toxic crystalline substance obtained from the roots of derris and related plants, widely used as an insecticide.

Examples :

"The gardener sprayed the roses with rotenone to kill the aphids. "
substance chemistry agriculture plant biology environment science technical compound nature insect

Related Words

Illustration sprayed

sprayed verb

/spɹeɪd/

To project a liquid in a dispersive manner toward something.

"The firemen sprayed the house."

Illustration derris

derris noun

/ˈdɛrɪs/ /ˈdɛrəs/

A climbing leguminous plant of Southeast Asia and the southwest Pacific Islands, Derris elliptica, whose roots are a source of rotenone.

"The farmer cultivated derris along the fence line, hoping to harvest its roots for use as a natural insecticide. "

Illustration gardener

gardener noun

/ˈɡɑːdnə/ /ˈɡɑɹdnɚ/

One who gardens; one who grows plants or cultivates a garden.

""Ponder the fact that God has made you a gardener, to root out vice and to plant virtue." — St. Catherine of Siena"

Illustration insecticide

insecticide noun

/ɪnˈsɛktɪˌsaɪd/

A substance used to kill insects.

"The farmer used insecticide to kill the bugs eating his crops. "

Illustration substance

substance noun

/ˈsʌbstəns/

Physical matter; material.

"The scientist carefully examined the substance to determine its chemical composition. "

Illustration plants

plants noun

/plɑːnts/ /plænts/

An organism that is not an animal, especially an organism capable of photosynthesis. Typically a small or herbaceous organism of this kind, rather than a tree.

"The garden had a couple of trees, and a cluster of colourful plants around the border."

Illustration toxic

toxic adjective

/ˈtɒk.sɪk/ /ˈtɑk.sɪk/

Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.

"Tobacco smoke contains many toxic substances."

Illustration obtained

obtained verb

/əbˈteɪnd/

To get hold of; to gain possession of, to procure; to acquire, in any way.

"She obtained her driver's license after passing the driving test. "

Illustration widely

widely adverb

/ˈwaɪdli/

In a wide manner; across a wide area.

"The new school policy was widely discussed by parents. "

Illustration crystalline

crystalline noun

/ˈkɹɪst.əl.aɪn/

Any crystalline substance.

"The jeweler carefully inspected each crystalline before setting it in the ring. "

Illustration aphids

aphids noun

/ˈeɪfɪdz/

Sapsucking pest insect of the superfamily Aphidoidea; an aphidian.

"The roses in the garden are covered in tiny green aphids that are sucking the sap from the leaves. "

Illustration related

related verb

/ɹɪˈleɪtɪd/

To tell in a descriptive way.

"Please relate the circumstances of your journey here today."