Antibiotic

Double click on any word to get a popup explanation of the word and sample sentences
Dictionary | Wikipedia | Synonyms | News

Antibiotic Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections; "when antibiotics were first discovered they were called wonder drugs"
  • of or relating to antibiotic drugs

Definitions from Wiktionary


  • a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections; "when antibiotics were first discovered they were called wonder drugs"

Would you like to add your own explaination to this word 'Antibiotic'?

Antibiotic Meaning and Definition in Wikipedia


An antibiotic (or antibacterial) is something that kills bacteria or slows the growth of bacteria. They are used as medicines to cure diseases caused by bacteria. Antibiotics are no use against viruses. Penicillin, the first natural antibiotic, is produced by a fungus. Production started in 1939, and now it is made by chemical synthesis.

Today, people worry that bacteria will not be affected by antibiotics. Bacteria do evolve, and already many strains of bacteria resist regular antibiotics. When exposed to antibiotics, most bacteria die quickly, but some may have mutations which make them slightly less susceptible. These bacteria then multiply and make a large colony which is less affected by the antibiotic.



Words and phrases related to 'Antibiotic'



Antibiotic Sample Sentences in News



Want to be famous? Add your definition to the meaning of 'Antibiotic'


Search for more meaning of 'Antibiotic' on the web