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...

    Biological Cell schematic diagram
    Biological Cell Introduction

    It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..

    Growth Patterns
    Growth Patterns

    This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

    Gene Regulation in Eukaryotes
    Gene Regulation in Eukaryotes

    Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

    Electromagnetic spectrum of a brain
    Sleep and Dreams – Neurology

    While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

    Lights' Effect on Growth
    Lights’ Effect on Growth

    This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

    Homeostasis by water regulation
    Homeostasis of Organism Water Regulation

    Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..