コンパニオンプランツalso: コンパニオンプラントMeanings1nouncompanion plantsagricultureAgricultural term for plants grown together for mutual benefit, such as pest control or pollination.トマトとバジルはコンパニオンプランツとしてよく一いっ緒しょに植うえられる。Tomatoes and basil are often planted together as companion plants.