A toxin is a naturally occurring poison [1] produced by metabolic activities of living cells or organisms. [2] They occur especially as proteins, often conjugated. [3]

Toxin, any substance poisonous to an organism. The term is sometimes restricted to poisons spontaneously produced by living organisms (biotoxins). Besides the poisons produced by such …

The meaning of TOXIN is 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 …

Aug 23, 2024 · Examples include botulinum toxin, staphylococcal enterotoxins, and ricin. These toxins can interfere with cellular processes, such as protein synthesis or nerve transmission, leading to …

Jul 11, 2025 · Toxicologist say that what makes a toxin depends on dose and exposure. Experts share tips to stay safe from harm—and from misinformation.

Background: The rapid and reliable identification of unknown or highly variable biological toxin proteins, such as the potent Ricin toxin, remains a critical challenge in biodefense and public security.

A poison that exists naturally in an insect or animal, and which is often introduced into the victim by biting or stinging, is known as a venom, while one in a plant is generally known as a toxin.

Toxin definition: any poison produced by an organism, characterized by antigenicity in certain animals and high molecular weight, and including the bacterial toxins that are the causative agents of …

Feb 3, 2025 · A toxin is any of a group of poisonous, usually unstable compounds generated by microorganisms, plants, or animals. Certain toxins are produced by specific pathogenic …

Apr 1, 2018 · A toxin is a chemical substance which damages an organism. A toxin may be as simple as an ion or atom which negatively interferes with a cell. A toxin can also be in the form of complex …