Definition

1. Noun:
   • A chemical substance used to kill insects: An insecticide is a type of pesticide specifically formulated to control, deter, or eliminate insects. It is commonly used in agriculture, public health, and domestic settings to protect crops, prevent disease transmission, and manage household pests.

Usage Examples

• Noun:
  • Farmers often spray insecticide to protect their crops from pests.
  • The use of a powerful insecticide effectively eliminated the mosquito population in the area.
  • This insecticide is safe for use around pets when applied as directed.

Advanced Usage

• "Broad-spectrum insecticide": A chemical that kills a wide range of insect species.

  • Broad-spectrum insecticides can harm beneficial insects like bees.

• "Systemic insecticide": A chemical that is absorbed by a plant and makes its tissues toxic to insects that feed on it.

  • The tree was treated with a systemic insecticide to protect it from boring insects.

Variants and Related Words

• Insecticidal (adjective): Having the properties of an insecticide; relating to killing insects.

  • The spray has a strong insecticidal effect.

• Pesticide (noun): A broader term for any substance used to destroy pests, which includes insecticides, herbicides, and fungicides.

Synonyms

• Pesticide (when context specifies insects)
• Bug spray (informal)
• Insect repellent (Note: This typically deters rather than kills insects)

Related Phrases

• Apply insecticide: To put insecticide onto a surface or area.

  • It is important to apply insecticide carefully to avoid contaminating water sources.

• Insecticide resistance: The decreased susceptibility of an insect population to an insecticide that was once effective.

  • The development of insecticide resistance is a major challenge in pest control.

Noun

1. a chemical used to kill insects