Dictionary
poison ivy
noun
: a common plant in the central and eastern U.S. that has leaves which cause a very itchy and painful rash on your skin if you touch them
: the rash that is caused by poison ivy
Full Definition of POISON IVY
1
a : a climbing plant (Toxicodendron radicans syn. Rhus radicans) of the cashew family that is especially common in the eastern and central United States, 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
See poison ivy defined for English-language learners
See poison ivy defined for kids
ADVERTISEMENT
First Known Use of POISON IVY
1784
POISON IVY Defined for Kids
poison ivy
noun
Definition of POISON IVY for Kids
1
: a usually climbing plant that has leaves with three leaflets and can cause an itchy painful rash when touched
2
: a skin rash caused by poison ivy
Medical Dictionary
poison ivy
noun \-ˈī-vē\
Medical Definition of POISON IVY
1
a : a climbing plant of the genus Rhus (R. radicans synonym Toxicodendron radicans) that is especially common in the eastern and central United States, that has leaves in groups of three, 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; especially : poison oak 1b
2
: a skin rash produced by poison ivy
Learn More About POISON IVY
Browse
Next Word in the Dictionary: poison milkweedPrevious Word in the Dictionary: poison hemlockAll Words Near: poison ivy
ADVERTISEMENT
Seen & Heard
What made you want to look up poison ivy? Please tell us where you read or heard it (including the quote, if possible).