phytocide

== English == === Etymology === From phyto- +‎ -cide. === Noun === phytocide (plural phytocides) (uncommon) An agent that kills plants, such as weedkiller. ==== Usage notes ==== Do not confuse a phytocide (an herbicide to kill plants) with a phytoncide, a substance made by the plant to discourage insects, animals, or bacteria from eating it. ==== Synonyms ==== herbicide (which is the usual word for this concept) ==== Hyponyms ==== weedkiller