204 results found

Search Results for: agent

Oxidation

Oxidation Definition How do we define oxidation? There are several definitions of the oxidation process. Oxidation can be... Read More

Cardiotonic agent

Cardiotonic agent agents that have a tonic effect on the heart or increase cardiac output. They may be glycosidic steroids... Read More

Rabies pathobiology and its RNA virus agent – Lyssavirus

Having a dog as a pet presents a myriad of benefits. One of them is having a companion reputed for being charismatic and... Read More

Agent

Agent (Science: pharmacology) Any power, principle or substance capable of producing an effect, whether physical, chemical... Read More

Hydrophilic

Hydrophilic Definition What does a hydrophile (or hydrophilic molecule) mean? If a molecule is “water-loving”, it is... Read More

Virulence

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

Agents

Agent (Science: pharmacology) Any power, principle or substance capable of producing an effect, whether physical, chemical... Read More

Chelating agent

Definition noun, plural: chelating agents A ligand, often an organic compound, which reacts with a metal ion to produce a... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Flavin mononucleotide

Definition noun plural: flavin mononucleotides fla·vin mon·o·nu·cle·o·tide, ˌmɒnəʊˈnjuːklɪəˌtaɪd A... Read More

Dose

Dose 1. (Science: pharmacology) a quantity to be administered at one time, such as a specified amount of medication. 2.... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Ferrous lactate

Definition noun A greenish white crystal or (powder) made up of iron (Fe2+) and lactate anions Supplement Ferrous lactate is... Read More

Disinfectant

Disinfectant An agent that disinfects, applied particularly to agents used on inanimate objects. Compare: antiseptic. An... Read More

Reducing sugar

Reducing Sugar Definition What is reducing sugar? The type of sugar that acts as the reducing agent and can effectively... Read More

Disaccharide

Definition noun plural: disaccharides di·sac·cha·ride, daɪˈsækəɹaɪd (biochemistry) A (carbohydrate) composed of... Read More

Opportunistic pathogen

Opportunistic Pathogen Definition How do we define opportunistic pathogen? The opportunistic pathogen is an infectious... Read More

Obligate parasite

Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More

Extrinsic incubation period

Extrinsic incubation period time required for the development of a disease agent in a vector, from the time of uptake of the... Read More

Vector

Definition noun, plural: vectors (1) (epidemiology) An organism or vehicle that transmits the causative agent or... Read More

Sex factor

Definition noun A DNA sequence or plasmid that confers certain bacteria the ability to produce a sex pilus for conjugation... Read More

F-factor

Definition noun A DNA sequence or plasmid that confers certain bacteria the ability to produce a sex pilus for conjugation... Read More

Demecolcine

Definition noun (cytogenetics) A cytotoxic alkaloid isolated from Colchicum autumnale, and is used as an antineoplast... Read More

Facultative anaerobe

Facultative Anaerobe Definition What does facultative anaerobe mean? Facultative organisms are the most adaptable... Read More

Instinct

Instinct 1. Natural inward impulse; unconscious, involuntary, or unreasoning prompting to any mode of action, whether... Read More

Oxidizer

Definition noun, plural: oxidizers Any substance that has the ability to oxidize other substance. Supplement An oxidizing... Read More

Light-independent reaction

The process of photosynthesis is a biological procedure in which plants produce oxygen and energy (sugar) by using light... Read More

Denaturation

Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More

Biosecurity and Biocontrol

By: Maria Victoria Gonzaga In the previous lesson, we learned about the importance of modern science... Read More

Pathogenicity

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

Germicide

Germicide (Science: pharmacology) An agent that kills pathogenic microorganisms. An agent (as heat or radiation or a... Read More

Hyperosmotic

Hyperosmotic Definition The word Hyperosmotic is derived from two Greek words: 'hyper', meaning “excess” and 'osmos',... Read More

Methyl aldehyde

methyl aldehyde --> formaldehyde (Science: chemical) Commonly used fixative and antibacterial agent. As a fixative it is... Read More

Zone of inhibition

Definition noun (microbiology) The clear region around the paper disc saturated with an antimicrobial agent on the agar... Read More

Communicable disease

Definition noun, plural: communicable diseases A type of disease that is contagious since the agent of the disease may be... Read More

Traumatic dermatitis

Definition noun A form of dermatitis that is caused by a physical agent or an irritant Supplement Dermatitis is a condition... Read More

Isomaltose

Definition noun plural: isomaltoses i·so·mal·tose, aɪsoʊˈmɔːltəʊz A disaccharide formed from the combination of... Read More

Mannitol

Definition noun plural: mannitols man·ni·tol, ˈmæn ɪˌtɔl A sugar alcohol with a sweetish taste, occurs naturally in... Read More

Diaphoretic

Diaphoretic definition Diaphoretic (adjective) is a descriptive term that means of, relating to, pertaining to, or causing... Read More

Chemotherapeutic index

Chemotherapeutic index The ratio of the minimal effective dose of a chemotherapeutic agent to the maximal tolerated dose.... Read More