weed killer

/wid ˌkɪlər/

Other forms: weed killers

Definitions of weed killer

1. noun

   a chemical agent that destroys plants or inhibits their growth
   synonyms: herbicide, weedkiller

   types:

   Agent Orange

   a herbicide used in the Vietnam War to defoliate forest areas

   atrazine

   a synthetic compound derived from triazine that is widely used as an agricultural herbicide

   linuron

   a herbicide that kills weeds without harming vegetables

   paraquat

   a poisonous yellow solid used in solution as a herbicide

   silvex

   a herbicide that is effective in controlling woody plants but is toxic to animals

   simazine

   a herbicide used to control weeds (especially among crops)

   type of:

   chemical, chemical substance

   material produced by or used in a reaction involving changes in atoms or molecules