Function: noun
Date: 1784
1 a : a climbing plant ( Toxicodendron radicans syn. Rhus radicans ) of the cashew family that is especially common in the eastern and central U.S., that has ternate leaves, greenish flowers, and white berries, and that produces an acutely irritating oil causing a usually intensely itching skin rash b : any of several plants closely related to poison ivy
2 : a skin rash caused by poison ivy
poison ivy