Is rotenone harmful to humans?

In high doses, rotenone can be toxic to humans, affecting the nervous system, but it is used safely in controlled, low-concentration applications.

How do you pronounce rotenone in British and American English?

In British English, it's pronounced /ˈrəʊtənəʊn/; in American English, /ˈroʊtənoʊn/.

What are the environmental impacts of rotenone?

Rotenone can persist in water and soil, potentially affecting non-target organisms; thus, its use is regulated to minimize ecological damage.

rotenone

Low

UK/ˈrəʊtənəʊn/US/ˈroʊtənoʊn/

Technical/scientific

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Definition

Meaning

A naturally occurring chemical compound used as an insecticide and piscicide.

Derived from the roots of certain plants, it is employed in organic farming and has historical use in fishing to stun fish; also studied for its neurotoxic effects.

Linguistics

Semantic Notes

A rotenoid (isoflavonoid) that inhibits mitochondrial electron transport, making it effective against insects and fish.

Dialectal Variation

British vs American Usage

Differences

No significant lexical or usage differences; the term is identical in both varieties.

Connotations

Neutral in both, primarily associated with agriculture and chemistry.

Frequency

Equally low frequency in technical contexts across both regions.

Vocabulary

Collocations

strong

use rotenonerotenone insecticideapply rotenone

medium

rotenone powderderived from rotenonerotenone toxicity

weak

rotenone compoundeffects of rotenonerotenone exposure

Grammar

Valency Patterns

rotenone is used to control peststhe application of rotenone inderivation of rotenone from plant roots

Vocabulary

Synonyms

Strong

pesticide

Neutral

insecticide

Weak

toxicantpiscicide

Vocabulary

Antonyms

non-toxic substancebenign agentsafe chemical

Usage

Context Usage

Business

Marketed in the agrochemical industry for organic pest control products.

Academic

Studied in biochemistry and toxicology for its effects on mitochondrial function.

Everyday

Rarely used in casual conversation; mostly in specialized discussions.

Technical

Utilized as a selective piscicide in fisheries management and in entomology research.

Examples

By CEFR Level

This powder has rotenone to kill bugs.
Rotenone is a chemical from plants.

Farmers use rotenone to protect their crops from insects.
In some places, rotenone is used to catch fish easily.

The application of rotenone in organic farming must follow strict safety guidelines.
Researchers have found that rotenone can affect mitochondrial health in cells.

Rotenone, a potent inhibitor of mitochondrial complex I, is extensively studied in neurotoxicology for modeling Parkinson's disease.
Due to its environmental persistence, the use of rotenone in aquaculture is regulated under international standards.

Learning

Memory Aids

Mnemonic

Think 'root' and 'none' – it comes from roots and leaves none of the pests alive.

Conceptual Metaphor

Nature's poison dart.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Direct loanword 'ротенон', so pronunciation and meaning are similar, but ensure correct stress in Russian.

Common Mistakes

Mispronouncing as 'rot-en-one' instead of the standard IPA pronunciations.
Confusing with 'rotten' due to similar spelling.

Practice

Quiz

Fill in the gap

Rotenone is commonly used as an in organic farming.

Multiple Choice

What is the primary source of rotenone?

FAQ

Frequently Asked Questions

: Rotenone is a natural insecticide and piscicide derived from the roots of certain plants, used in agriculture and fishing.
: In high doses, rotenone can be toxic to humans, affecting the nervous system, but it is used safely in controlled, low-concentration applications.
: In British English, it's pronounced /ˈrəʊtənəʊn/; in American English, /ˈroʊtənoʊn/.
: Rotenone can persist in water and soil, potentially affecting non-target organisms; thus, its use is regulated to minimize ecological damage.