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Characterized by, having the characteristics of, or containing a poison.
Synonym(s): toxic (1) , toxicant (1) , toxiferous, venenous
Farlex Partner Medical Dictionary © Farlex 2012


a. Containing or being a poison: poisonous fumes.
b. Capable of harming or killing by poison: poisonous tentacles.

poi′son·ous·ly adv.
poi′son·ous·ness n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Characterized by, having the characteristics of, or containing a poison.
Synonym(s): toxic (1) , venenous.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about poisonous

Q. How Do You Treat Food Poisoning? I've been suffering from food poisoning for the last two days, is there a way to treat it? Is there specific food I should avoid?

A. The most important treatment for food poisoning is drinking water. The body loses many fluids and the danger is dehydration. Our body can last longer without food than it can without water, and therefore it is ok to avoid eating as much as you used to for a short period of time until your digestive system can recover. However it is very dangerous to avoid drinking, despite the possible vomiting.At any sign of dehydration (fatigue, dizziness) you should seek medical care. In case your symptoms go on loger than expected you should visit your doctor, because antibiotic treatment may help as well.

Q. What are the Symptoms of Food Poisoning? My kid started vomiting non-stop tonight, but has doesn't have a fever. We ate lunch at this new restaurant, could this be related? What are the symptoms of food poisoning?

A. Symptoms that occur within 1–6 hours after eating the food, suggest that it is caused by a bacterial toxin or a chemical in the food. During this short "incubation period", microbes pass through the stomach into the intestine, attach to the intestinal walls, and begin to multiply there. Some types of microbes stay in the intestine, some produce a toxin that is absorbed into the bloodstream, and some can directly invade the deeper body tissues. The symptoms produced depend on the type of microbe, but are most commonly vomiting, nausea, fever and stomach aches.

Q. How can I tell if I have food poisoning? I've been having diarrhea and been vomiting for 2 days now. How can I tell if it's food poisoning or anything else?

A. when i got food poisioned i was pooping and throwing up at the same time,it lasted for about 10 hours,

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References in periodicals archive ?
Jimoh added that NAFDAC had been up and doing to ensure that no poisonous or substandard product considered harmful was brought into the country.
The fishermen told her not to eat the fish because the fish were poisonous. The victim said she would be fine,' Monny said.
Meanwhile, 29-year-old Bushra Muneer resident of Allama Iqbal Town, Komal Waheed (17) resident of Chak No.215-RB, Waqar Younus (23) resident of Samanabad and Ali Jaffar resident of Chak No.229-RB swallowed poisonous pills.
All parts of the plant are poisonous. | GLORY Lily (Gloriosa superba) THESE beautiful summerflowering climbers, produce red flowers with yellow tips, inset right, but their beauty belies their toxicity and every part of the plant - particularly the corm - is poisonous.
Duale said he tabled before the Parliamentary Committee on Trade and Agriculture a list of over 60 importers and a person who brought in 185 metric tonnes of poisonous sugar.
The case was confirmed by the 'director of the agriculture department', Akif Unsal, who, in statements to the media said that "poisonous tomatoes were imported to the TRNC from Greece via Turkey and were all removed from the market and are being destroyed".
"Visitors are taken around in small parties accompanied by a gardener who knows the poisonous plants.
All parts of the plant are poisonous * DUMB CANE (Dieffenbachia) This large-leaved houseplant is poisonous, while the sap can cause skin and eye irritation.
Morning Glory (Ipomoea) - This lovely garden climber, with heart-shaped leaves and large, trumpet-like flowers, adorns many trellises and archways in summer, but it is also poisonous.
This is in reply to Dipika C's attempt to create awareness among the public about poisonous plants in Bahrain (GDN, September 25).
Poisonous parenting; toxic relationships between parents and their adult children.
Most poisonous animals warn predators with their colors, taste, and smell.