45 results found

Search Results for: toxin

Erythrogenic toxin

Erythrogenic toxin (Science: protein) toxin produced by strains of streptococcus pyogenes responsible for scarlet fever.... Read More

Toxin

toxin (Science: pharmacology) A poison frequently used to refer specifically to a protein produced by some higher plants,... Read More

Antitoxin

Antitoxin (Science: protein) a purified antiserum from animals (usually horses) immunised by injections of a toxin or... Read More

Exotoxin

Exotoxin (Science: protein) toxin released from gram-positive and gram-negative bacteria as opposed to endotoxins that form... Read More

Enterotoxin

Enterotoxin (Science: microbiology) group of bacterial exotoxins produced by enterobacteria and that act on the intestinal... Read More

Biological magnification

Definition noun, plural: biological magnification The increasing concentration of a particular substance (e.g. toxin) as it... Read More

Dinoflagellate

A dinoflagellate is a flagellate algae characterized by their two flagella of unequal length. One of the flagella is lying... Read More

SELFISH GENE – selfish to persist

What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More

Pathogenicity

Definition noun, plural: pathogenicities The capability (of a pathogenic agent) to cause disease Supplement Pathogenicity... Read More

Microalgae

Microalgae are microscopic algae. They are single-celled algae that may exist independently or in colonies. They are... Read More

Arrow poison

Definition noun Any toxin used for making arrow heads, spears, or darts poisonous Supplement Arrow poisons are toxins used... Read More

Streptococcus

Definition noun, plural: streptococci (1) A genus of bacteria characterized by being coccus, Gram-positive, and occurring in... Read More

Focus

Definition noun, plural: foci (general) A central point (pathology) The central site in which a disease localizes or... Read More

Sudoresis

Definition noun The state of sweating excessively Supplement Sweating is the body's physiological means to regulate body... Read More

Exogenous antigen

Definition noun Antigen that enters the body of the organism from the outside, e.g. through inhalation, ingestion, or... Read More

Haptene

Definition noun, plural: haptenes A substance that induces immune response when bound to a carrier protein or to large... Read More

Polyvalence

Definition noun The state of being polyvalent. (immunology) The state of being capable of destroying or inactivating more... Read More

Polyvalency

Definition noun The state of being polyvalent. (immunology) The state of being capable of destroying or inactivating more... Read More

Cnidocyst

Definition noun, plural: cnidocysts A capsule containing thread-like tube (commonly barbed and toxic) found inside the... Read More

Diarrhea

Definition noun An abnormally frequent discharge of a loose, watery stool Supplement Diarrhea pertains to the abnormally... Read More

Vibrio cholerae

Definition Noun A gram-negative single polar flagellum bacterium associated with cholera infection in... Read More

Multiple alleles

Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... Read More

Herpetology

Definition noun The branch of zoology that deals with reptiles and amphibians Supplement Herpetology is a sub-discipline of... Read More

Tissue repair

Definition noun The process of restoring the structural and physiological integrity after an injury Supplement Tissue repair... Read More

Virulence

Virulence definition In biology, virulence is defined as the degree by which a pathogenic organism can cause disease.... Read More

Tetrodon

Definition noun, plural: tetrodons Any of the species belonging to the genus Tetraodon of puffer fish... Read More

Hapten

Definition noun, plural: haptens A substance that induces immune response when bound to a carrier protein or to large... Read More

Streptolysin O

Definition noun An oxygen-labile, immunogenic hemolysin produced by or derived from some strains of... Read More

Medullary chemoreceptor trigger zone

Medullary chemoreceptor trigger zone (CTZ) (anatomy and physiology) It is located in the Medulla (i.e. Part of the brain)... Read More

Necrosis

Definition noun, plural: necroses Premature death of cells in a living tissue or organ caused by the progressive degradative... Read More

Virus

Definition noun, plural: viruses A submicroscopic infectious agent that is unable to grow or reproduce outside a host... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More

Hemolysis

Definition noun The lysis or the breaking open of red blood cell (erythrocyte) causing the release of hemoglobin into the... Read More

Purulence

Definition noun The state of forming of pus at the site of injury or infection, or the pus itself Supplement Inflammation is... Read More

Tolerance

tolerance 1. The ability to endure unusually large doses of a drug or toxin. 2. Acquired drug tolerance, a decreasing... Read More

Infection

Definition noun, plural: infections (microbiology) Invasion and multiplication of an infectious agents in body tissues of... Read More

Caseinase

Caseinase (Science: enzyme) see also caseinase c registry number: EC 3.4.24.- Synonym: clostridium perfringens lambda... Read More

Heat-labile

Definition adjective Likely to be altered or degradation when subjected to heat Supplement In chemistry, the lability of a... Read More

Endocytosis

Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More

Inoculum

Definition noun, plural (1) Cells used in an inoculation, such as cells added to start a culture. (2) A biological material... Read More