root nodule編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看root noduleroot nodule — 名詞名詞1. a small swelling on plant roots containing nitrogen-fixing bacteria1.名詞釋義根瘤a small swelling on plant roots containing nitrogen-fixing bacteria例句Legumes form root nodules to convert nitrogen into a usable form.