Jan 25, 2025 · Antibiotic, chemical substance produced by a living organism, generally a microorganism, that is detrimental to other microorganisms. Antibiotics came into worldwide prominence with the introduction of penicillin in 1941. Since then they have revolutionized the treatment of bacterial infections.

The meaning of ANTIBIOTIC is a substance able to inhibit or kill microorganisms; specifically : an antibacterial substance (such as penicillin, cephalosporin, and ciprofloxacin) that is used to treat or prevent infections by killing or inhibiting the growth of bacteria in or on the body, that is administered orally, topically, or by injection ...

An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. [1] [2] They may either kill or inhibit the growth of bacteria.

Mar 13, 2024 · Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means...

1. destructive of life. 2. a chemical substance produced by a microorganism that has the capacity, in dilute solutions, to kill other microorganisms or inhibit their growth. Antibiotics that are sufficiently nontoxic to the host are used as chemotherapeutic agents in the treatment of infectious diseases. See also antimicrobial agent.

Dec 18, 2023 · Antibiotics are powerful medications that treat certain infections and can save lives when used properly. They either stop bacteria from reproducing or destroy them. Before bacteria can...

May 24, 2023 · What does “antibiotic” mean? An antibiotic refers to any substance that stops bacteria from growing. The antibiotics you take may be entirely made from natural products.

ANTIBIOTIC definition: 1. a medicine or chemical that can destroy harmful bacteria in the body or limit their growth: 2…. Learn more.

Apr 17, 2023 · Antibiotics are medicines that fight bacterial infections in people and animals. They work by killing the bacteria or by making it hard for the bacteria to grow and multiply. Antibiotics can be taken in different ways: Orally (by mouth). This …

Mar 27, 2024 · Antibiotics are chemical substances produced by various species of microorganisms that are capable, in low concentrations, of inhibiting the growth of or killing other microorganisms. The modern definition of antibiotics are;