Definition of "weed killer" []

• A chemical agent that destroys plants or inhibits their growth (noun)

WordNet. Princeton University. 2010.

• "As she pulls into her driveway, the lawn company is pulling away, having just sprayed weed killer on the crabgrass and dandelions that threaten to ruin the lawn."
• "One extracts it from weed killer or flypapers, I believe. '"