Home › Words › L › leafrollleafrollleafroll means A viral condition of certain plants, such as potato plants and grapevines, in which new leaves curl and become discoloured.EtymologyFrom leaf + roll.nounA viral condition of certain plants, such as potato plants and grapevines, in which new leaves curl and become discoloured.Definitions & examples from Wiktionary (CC BY-SA 3.0).