Dictionary > Antibiotic

Antibiotic

Definition
noun, plural: antibiotics
Antimicrobial agent made from microorganisms, and can kill and inhibit the growth of microorganisms, especially those that are infectious or disease-causing
adjective
Of, relating to, or pertaining to antibiotic
Supplement
Antibiotics are chemotherapeutic substances that are capable of killing and inhibiting growth of specific microorganisms, such as infectious bacteria and fungi.
There are different kinds of antibioics, and are classified based on their mechanism of action (i.e. if on the cell membrane, cell wall, or metabolism), chemical structure, spectrum of activity (i.e. if targeting gram-negative or gram-positive bacteria), or by mode of administration (e.g. oral, intravenous, or topical).
Antibiotic treatments should be done in accord to the recommended dosage and duration in order to prevent antibiotic resistance. The latter is a condition in which the antibiotic has become less effective when the target bacteria acquire resistance to antibiotic effects.
Antibiotics are derived from microorganisms, such as fungi and bacteria. Therefore, the antimicrobial gastric juice is not considered an antibiotic.
Related term(s):

  • antibiotic resistance
  • transport antibiotic
  • antibiotic candidiasis

Mentioned in:

  • Amoxicillin
  • Miocamycin
  • Oleandomycin


  • You will also like...

    Digestion and Absorption of Food
    Digestion and Absorption of Food

    The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

    Water Cycle
    The Water Cycle

    The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

    Human perception in action
    Human Perception – Neurology

    This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

    Regulation of Biological Systems
    Regulation of Biological Systems

    Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..

    New Zealand - Biodiversity fauna
    New Zealand’s Biodiversity

    Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

    Bryophytes
    Bryophytes

    Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..