aconite /'aeksnait; 'aekaznait/ n (bot) (sorts of) plant with blue or purple flowers; monkshood; drug from the dried poisonous root of one of these kinds, used to slow down the action of the heart. (植物) 附子; 烏頭 (開藍或紫花之一屬植物); 烏頭素 (由此屬植物之毒根所提煉之藥物，用以減緩心臟的活動) 。