weed killer

Thân thiện

A gardener sprays weed killer on the dandelions in the lawn.

Definition

Noun: A chemical substance specifically formulated to eliminate unwanted plants (weeds) or to suppress their growth. It is a type of herbicide.

Usage

This term is used to refer to commercial products, agricultural chemicals, or homemade solutions designed for controlling weeds in gardens, lawns, farms, and other cultivated areas. * Always follow the safety instructions on the weed killer label. * The gardener applied a selective weed killer to the lawn to target dandelions without harming the grass. * Vinegar can be used as a natural weed killer on driveways and patios.

Advanced Usage

• "Pre-emergent weed killer": A type of herbicide applied to soil to prevent weed seeds from germinating.
  • Applying a pre-emergent weed killer in early spring can reduce problems all season.
• "Systemic weed killer": A herbicide that is absorbed by the plant and translocated throughout its system, killing it completely, including the roots.
  • For perennial weeds, a systemic weed killer is more effective than a contact spray.

Variants and Related Words

• Herbicide (n): The formal, general term for a substance toxic to plants; "weed killer" is a common synonym.
  • Glyphosate is a widely used herbicide.
• Weedkiller (n): An alternative, often single-word spelling of "weed killer".
  • He bought a new brand of weedkiller.

Synonyms

• Herbicide
• Plant killer (less common)

Related Phrases

• To spray weed killer: The common action of applying the substance.
  • He sprayed weed killer along the fence line.

Học thuật

Noun

1. a chemical agent that destroys plants or inhibits their growth

Từ đồng nghĩa

• herbicide
• weedkiller