(Diş Hekimliği) Hayvan veya bitki hücrelerinin özellikle bakterilerin meydana getirdiği zehirli madde; toksinler vücuda enjekte edilince spesifik antikor veya antitoksinlerin oluşumuna sebep olurlar
(Askeri) TOKSİN MADDE: İnorganik zehirlerden ayrı olarak bitkisel veya hayvansal bir organizmanın metabolizmasında salgılanan özel bir madde şeklinde oluşan zehir. Böyle zehirler aynı zamanda sentetik yöntemler ile de imal edilebilmektedir
Definition von toxin im Englisch Englisch wörterbuch
A toxic or poisonous substance produced by the biological processes of biological organisms
a poison; frequently used to refer specifically to a protein produced by some higher plants, certain animals, and pathogenic bacteria, which is highly toxic for other living organisms
A poisonous substance produced by a living organism (e g , a bacterium, a plant, or an animal) Some toxins can cause diseases, such as botulism and tetanus
A toxin is any poisonous substance produced by bacteria, animals, or plants. Tests showed increased levels of toxin in shellfish. a poisonous substance, especially one that is produced by bacteria and causes a particular disease (toxic + -in ). Any substance poisonous to an organism; often restricted to poisons produced by living organisms. In addition to those from such microorganisms as bacteria (see bacterial diseases), dinoflagellates, and algae, there are toxins in fungi (mycotoxins; see aflatoxin; mushroom poisoning), higher plants (phytotoxins), and animals (zootoxins, or venoms). The plants include nightshade (see nightshade family), poison hemlock, foxglove, mistletoe, and poison ivy. Many plant toxins (e.g., pyrethrins, nicotine, rotenone) apparently protect their producers against certain animals (especially insects) or fungi. Similar defensive secretions in animals may be widely distributed or concentrated in certain tissues, often with some sort of delivery system (e.g., spines, fangs). Animals such as spiders and snakes use venoms to catch prey and often for defense. Many normally edible fishes and shellfishes become poisonous after feeding on toxic plants or algae. See also antidote; food poisoning
A poison, usually a protein, formed by microorganisms Some toxins are given off as waste products of a microorganism, and are called Aexotoxins@ Others are contained within the cells, and are liberated only when the cell dies and disintegrates These are called Aendotoxins@ Toxins produced by Clostridium botulinum are thermolabile, that is, they are fairly easily destroyed by heat
A colloidal poisonous substance that is a specific product of the metabolic activities of a living organism and is notably toxic when introduced into living tissue
A poison formed as a specific secretion product in the metabolism of a vegetable or animal organism as distinguished from inorganic poisons Such poisons can also be manufactured by synthetic processes
Any of a variety of unstable, poisonous compounds produced by some microorganisms and causing certain diseases
A colloidal proteinaceous 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 (Webster's New Collegiate Dictionary, 1977)
toxin that causes the potentially-fatal disease botulism and is found in spoiled food (created by the bacteria Clostridium botulinum - which is used in biological weapons and in very small doses to treat muscular disorders)
a neurotoxin (trade name Botox) that is used clinically in small quantities to treat strabismus and facial spasms and other neurological disorders characterized by abnormal muscle contractions; is also used by cosmetic surgeons to smoothe frown lines temporarily
a bacterial toxin produced by Clostridium perfringens; causes intense abdominal cramps and diarrhea that begins 8-22 hours after consumption of foods containing large numbers of these bacteria
A class of biological poison resulting from the byproduct of living organisms A toxin may be obtained naturally, that is, from secretions of various organisms or synthesized (FM3-4)
Chemical or natural substances that can cause harmful effects on humans; toxins include heavy metals such as cadmium, lead, and mercury, as well as organic compounds like petroleum products, polychlorinated biphenyls (PCBs), and polynuclear aromatic hydrocarbons (PAHs)
Agents produced by plants and bacteria, normally very damaging to mammalian cells, that can be delivered directly to target cells by linking them to monoclonal antibodies or lymphokines
Poisonous chemicals that react with specific cellular components to kill cells or to alter growth or development in undesirable ways; often harmful, even in dilute concentrations