poison ivy

noun 0.681

poison oak

noun 0.663

toxicodendron

noun 0.589

urticaria

noun 0.564

juglone

noun 0.553

ricin

noun 0.547

cholinergic urticaria

noun 0.535

uracil

noun 0.527

ursolic acid

noun 0.527

lupeol

noun 0.522

uric acid

noun 0.519

aristolochic acid

noun 0.515

croton oil

noun 0.514

rash

noun 0.505

betulinic acid

noun 0.504

iridoid

noun 0.502

ricinoleic acid

noun 0.502

itching

noun 0.502

podophyllin

noun 0.501