1. plural of stavesacre; poisonous plants of the larkspur family whose seeds were historically used as a pesticide
Usage: botanical; archaic

Examples

• The old gardening manual mentioned stavesacres as a traditional remedy for garden pests.
• Stavesacres were once commonly used to kill lice and other parasites.
• The herbalist warned that stavesacres are highly toxic if ingested.
• Medieval texts describe the preparation of stavesacres for pest control.
• The seeds of stavesacres contain delphinine, a dangerous alkaloid.