Noun
a chemical agent that destroys plants or inhibits their growth
Source: WordNetHeath investigates how one lawmaker received campaign contributions from a lobbyist for two pesticide companies that sell weed killer that was set to be banned on the condition that the EPA complete its scientific review of arsenic. Source: Internet
I should've used the weed killer on the darn thing, but that didn't occur to me until much, much later. Source: Internet
“The defendant asserted that she thought she had poured weed killer on weeds and did not know that there were artichokes amongst the weeds. Source: Internet
A weed killer used to manage plants along U.S. Highway 20 left the Deschutes National … Source: Internet
Use rock salt or table salt as a weed killer. Source: Internet