柯林斯词典poison ivy 1. N-UNCOUNT Poison ivy is a wild plant that grows in North America and that causes a rash or skin problems if you touch it. 毒漆藤 返回 poison ivy剑桥词典a North American plant that causes your skin to itch and turn red if you touch its leaves 毒漆，氣根毒藤 返回 poison ivy