poison ivy


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poi·son i·vy

, poison oakpoison sumac (poy'zŏn ī'vē),
1.
2. Common name for the cutaneous eruption (Rhus dermatitis) caused by contact with these species of Toxicodendron.

poison ivy

n.
1. A North American shrub or vine (Toxicodendron radicans) that has compound leaves with three leaflets, small green flowers, and whitish berries and that causes a rash on contact.
2. A skin rash caused by contact with this plant. In both senses also called poison oak.
Pharmacognosy A plant that is highly allergenic due to urushiol—which is also present in mango, japanese lacquer tree, cashews, as well as poison oak and poison sumac
Common urushiol-rich plants Poison ivy (Toxicodendron radicans, eastern US) poison oak (T diversilobium or Rhus diversiloba, western US), poison sumac (T vernix, southern US)
Public health A popular term for any allergic reaction or dermatopathy caused by T radicans, as in ‘Bob has poison ivy’

poison ivy

1. A plant that is highly allergenic due to urushiol, which is also found in mango, japanese lacquer tree, cashews; common urushiol-rich plants: poison ivy–Toxicodendron radicans, eastern US, poison oak–T diversilobium or Rhus diversiloba, western US; poison sumac–T vernix, southern US. See Urushiol.
2. A popular term for any allergic reaction or dermatopathy caused by T radicans.

poi·son i·vy

, poison oak , poison sumac (poy'zŏn ī'vē, ōk, sūmak)
2. Common name for the cutaneous eruption caused by contact with these species of Toxicodendron.
References in periodicals archive ?
* Poison ivy leaves appear different depending on the season.
The literature and common sense suggest that most patients who seek medical treatment for poison ivy are primarily concerned about itching.
With the Calamine package, security professionals can identify telltale indicators of a Poison Ivy attack - including the attacker's Poison Ivy process mutex and password, decoded command and control traffic to identify exfiltration/lateral movement, and a timeline of Poison Ivy malware activity.
A doctor should check poison ivy rashes that do not improve or last longer than two weeks.
Poison Ivy was sexy as all get out but calm and collected as she strummed her guitar, while Lux was the opposite--writhing and grunting and putting on a show.
POISON IVY PILLS -- A poison ivy pill can offer season-long immunity against America's common summer skin rash....
The majority of cases involved giving medications which needed to be refrigerated, poison ivy reactions and gastrointestinal upsets.
Staffed by nurse practitioners, they serve patients 18 months and older for such common illnesses as strep throat, ear and sinus infections, pinkeye, and poison ivy. The clinics also provide diagnostic screenings and currently accept several health plans.
Varieties commonly found in these forests include grapevines, trumpet vine, poison ivy, and Virginia creeper.
Throughout the study, the higher C[O.sub.2] level doubled the poison ivy growth rate.
Knowing what the poison ivy plant looks like can help you avoid it.