Definition of insecticide
: an agent that destroys insects
Recent Examples of insecticide from the Web
RELATED: Two Latinos Win Prestigious Prize as 'Grassroots Environmental Heroes' Tobacco plants require large quantities of insecticides, herbicides, fungicides and fumigants to control pest or disease outbreaks.
The situation is totally different in Europe, where treatment moved on from pyrethroids and virtually all insecticides about a decade ago, says Ian Burgess, president of the International Society of Phthirapterists (people who study lice).
And if the roach has been the target of an insecticide, certain kinds of poison, notably organophosphate nerve poisons, cause muscular spasms that can flip a cockroach onto its back.
Some gardeners also like to use one of the systemic insecticides for a sure kill.
Once absorbed, this insecticide leaks out of the glands slowly, coating strands of your best friend’s fur.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'insecticide'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of insecticide
International Scientific Vocabulary
First Known Use: 1865See Words from the same year
INSECTICIDE Defined for English Language Learners
Definition of insecticide for English Language Learners
: a chemical substance that is used to kill insects
INSECTICIDE Defined for Kids
Definition of insecticide for Students
: a chemical used to kill insects
Seen and Heard
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