weedkiller
Học thuậtThân thiện
Definition
- Noun:
- A chemical agent that destroys plants or inhibits their growth: A substance, typically a synthetic chemical, used to kill unwanted plants (weeds) or prevent them from growing.
Usage
- The word "weedkiller" is a common, everyday term for a herbicide. It is often used in gardening, farming, and domestic contexts.
- It is typically an uncountable noun when referring to the substance in general (e.g., "apply weedkiller") but can be countable when referring to types or brands (e.g., "different weedkillers").
- It is used to specify the purpose of a chemical product.
Examples
- Noun:
- I need to buy some weedkiller for the driveway.
- This weedkiller is effective against dandelions.
- Always wear gloves when handling weedkiller.
- Organic gardeners often avoid using synthetic weedkillers.
Advanced Usage
- "Selective weedkiller": A type of weedkiller designed to kill only certain types of plants (e.g., broadleaf weeds) while leaving others (e.g., grass) unharmed.
- Use a selective weedkiller on your lawn to remove clover without damaging the grass.
- "Systemic weedkiller": A weedkiller that is absorbed by the plant and travels throughout its system to kill it completely, including the roots.
- For perennial weeds, a systemic weedkiller is more effective.
Variants and Related Words
- Herbicide (n): The formal, technical term for a weedkiller. It is often used in agricultural, scientific, and regulatory contexts.
- The farm uses herbicides to control weeds in the crop fields.
- Weed (n): An unwanted plant growing where it is not desired.
- Kill (v): To cause the death of.
Synonyms
- Herbicide: (Formal synonym) A chemical used to destroy plants.
- Plant killer: (Informal, less common) A general term for something that kills plants.
Antonyms
- Fertilizer: A substance added to soil to enhance plant growth.
- Plant food: A substance that nourishes plants.
Noun
- a chemical agent that destroys plants or inhibits their growth