Antibiotic

Antibiotic

Noun

A medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms: course of antibiotics | [mass noun] :  an injection of antibiotic.

Also:

• antibacteria

Notes

• 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. They may either kill or inhibit the growth of bacteria. A limited number of antibiotics also possess antiprotozoal activity. Antibiotics are not effective against viruses such as the ones which cause the common cold or influenza. Drugs which inhibit growth of viruses are termed antiviral drugs or antivirals. Antibiotics are also not effective against fungi.

References

• https://en.wikipedia.org/wiki/Antibiotic 

Herbal Plants with Antibiotic properties: