define toxic
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toxin Definition of toxin. : a poisonous substance that is a specific product of the metabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation.
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toxicity State of being poisonous. n the ability of a drug or poison to produce harm, especially to cause permanent injury or death. Usually distinguished from. allergenic properties. toxicity, acute, n a condition produced after short-term use of a toxic agent. See also dose, lethal, median; dose, lethal, minimum.
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toxin tox•in. any poison produced by an organism, including the bacterial toxins that are the causative agents of tetanus, diphtheria, etc., and such plant and animal toxins as ricin and snake venom. [1885–90; tox (ic) + -in 1 ]. syn: See poison.
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Toxicity Types of toxicity [edit]. There are generally three types of toxic entities; chemical, biological, and physical: 1  Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and poisons from living things.
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toxicity developmental toxicity the extent to which a toxin produces adverse effects on a developing embryo or fetus; see also teratogenesis. maternal toxicity a toxic effect on a pregnant woman or nursing mother, as opposed to one affecting an embryo, fetus, or nursing infant.
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toxin tox·in. n. 1. A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins. 2.oxin. n. 1. (Pathology) any of various poisonous substances produced by microorganisms that stimulate the production of neutralizing substances (antitoxins) in the body. See also endotoxin, exotoxin. 2. (Biology) any other poisonous substance of plant or animal origin.
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Definition of 'poison' Definition of 'poison'. poison. Poison is a substance that harms or kills people or animals if they swallow it or absorb it. Poison from the fish causes paralysis, swelling, and nausea. If someone poisons another person, they kill the person or make them ill by giving them poison. The rumors that she had poisoned him could never be proved. poisoning uncountable noun
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- What is Toxicology? Toxicology is the scientific study of adverse effects that occur in living organisms due to chemicals. It involves observing and reporting symptoms, mechanisms, detection and treatments of toxic substances, in particular relation to the poisoning of humans.
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toxin toxin. a poison, especially a protein or conjugated protein produced by certain animals, some higher plants, and pathogenic bacteria. Antigenic toxins, produced by bacteria or helminths, stimulate production of antitoxins.Exotoxins are produced by bacteria and diffuse into surroundings, e.g. tetanus toxin, or can be ingested preformed, e.g. botulinum toxin. Endotoxins are released into the surrounding tissue only when the bacteria break down.ntigenic toxins, produced by bacteria or helminths, stimulate production of antitoxins. Exotoxins are produced by bacteria and diffuse into surroundings, e.g. tetanus toxin, or can be ingested preformed, e.g. botulinum toxin. Endotoxins are released into the surrounding tissue only when the bacteria break down.
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Poison Any substance dangerous to living organisms that if applied internally or externally, destroy the action of vital functions or prevent the Continuance of life. Economic poisons are those substances that are used to control insects, weeds, fungi, bacteria, rodents, predatory animals, or other pests.
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- Chemical Hazards The word toxic means poison. Poisoncauses illness and sometimes death.Toxicity refers to a chemical’s ability toharm living things (you).These harmful chemicals, called toxins,affect various parts of the body, such as thenervous system, the heart, the lungs, theeyes, and the skin.ven with this short amount oftime, students come out with a great understanding of WHMIS.As new students may enter your facility after your lessons on WHMIS, thisbooklet and assignments may allow students to progress by themselves, if needbe, with little intervention by the teacher.
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- Volume 1, Number 3. Toxic Torts: An Overview. Background. Toxic comes from the Greek word meaning, “of, relating to, or caused by a toxin; toxin is defined as, “a poisonous substance produced by metabolic activities of a living organism that is usually unstable, very toxic when introduced into tissues and usually capable of inducing antibodies.
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What does toxic mean? Toxicity is the ability of a substance to cause harmful health effects. Descriptions of toxicity (eg low, moderate, severe, etc.) depend on the amount needed to cause an effect or the severity of the effect. ccinfoweb.ccohs.ca/help/msds/msdstermse....
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Toxicity Toxicity is the degree to which a substance can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a substructure of the organism, such as a cell (cytotoxicity) or an organ such as the liver (hepatotoxicity). Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and poisons from living things.
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toxin toxin. n. 1. (Pathology) any of various poisonous substances produced by microorganisms that stimulate the production of neutralizing substances (antitoxins) in the body. See also endotoxin, exotoxin. 2. (Biology) any other poisonous substance of plant or animal origin.. A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins.
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toxic of, pertaining to, affected with, or caused by a toxin or poison: a toxic condition. 2. acting as or having the effect of a poison; poisonous: a toxic drug. 3. causing unpleasant feelings; harmful or malicious: a toxic boyfriend; toxic criticism.
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Toxicity There are generally four types of toxic entities; chemical, biological, physical and radiation: 1  Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and poisons from living things.
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Poison Info What is a Poison? A poison is anything that can harm someone if it is 1) used in the wrong way, 2) used by the wrong person, or 3) used in the wrong amount. Some poisons may be harmful if they come into direct contact with your eyes or skin. Others may be toxic if you breathe them or swallow them.
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Health Effects of Toxic Chemicals Toxicity is an inherent property of the material. A material may be very toxic, but not hazardous, if it is handled properly and is not absorbed into the body. On the other hand, a material may have a very low toxicity, but be very hazardous. Example:
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poisonous They're poisonous. In other words, if you ingest these poisonous chemicals, you will most likely die or become very ill. If something is poisonous, you'd better not eat, drink, inhale, or touch it: it will make you sick. Some poisonous materials can even kill you. Of course, this adjective is derived from the noun poison, which is a toxic substance. You can also calls things poisonous if they're harmful in less physical ways. Spreading lies about someone is poisonous. Betraying a friend is poisonous. What both kinds of poisonous things have in common is that they do damage.
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- Toxicologist. A toxicologist is someone who has studied toxicology and works with materials and chemicals to determine the toxic effects they may have on the environments and living organisms. People who are methodical and scientific are well suited for a career in toxicology.
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- Toxicology is the scientific study of adverse effects that occur in living organisms due to chemicals. It involves observing and reporting symptoms, mechanisms, detection and treatments of toxic substances, in particular relation to the poisoning of humans.
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toxin tox·in. n. 1. A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins. 2.
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toxic Related Terms. Carcinogenic, poisonous, or otherwise directly harmful to life in any form. Practically every substance is toxic, the only difference is in the quantity (dose) that produces a toxic effect (see toxicity).
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- Poison is defined as a substance that is mainly consisting of chemicals that re not suitable to the organisms. Because the chemical reaction may harm a stimuli if poison is to intake. In essence, poison is a catch-all word for toxins and venom. We can classify poisons in various types.
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- B2 any basic substance that is used in or produced by a reaction involving changes to atoms or molecules: The government has pledged to reduce the amount of chemicals used in food production. Each year, factories release millions of tons of toxic (= poisonous) chemicals into the atmosphere. More examples.