antibiotic
C2Pronunciation
UK
- /ˌæntɪbaɪˈɒtɪk/
US
- /ˌæntaɪbaɪˈɑtɪk/
- /ˌæntibaɪˈɑtɪk/
Description
- kills bacteria
- treats bacterial infections
- not for viruses
Imagine tiny soldiers inside your body battling an invading army of bacteria. That's essentially what antibiotics do! The word "antibiotic" comes from "anti" (against) and "bios" (life), so it literally means "against life"—specifically, against bacterial life. These powerful medicines are used to fight infections caused by bacteria, like strep throat or a urinary tract infection.
It's important to remember antibiotics don't work on viruses—things like the common cold or flu. Using antibiotics when you have a virus won't help and can even be harmful! Overuse of antibiotics is also creating "superbugs"—bacteria that become resistant to these drugs, making infections harder to treat. So, antibiotics are powerful tools, but they need to be used responsibly and only when prescribed by a doctor.
Antibiotics are medications used to fight bacterial infections. They work by either killing bacteria or stopping them from growing and multiplying, allowing the body's immune system to overcome the infection. The discovery of penicillin in 1928 by Alexander Fleming revolutionized medicine, marking the beginning of the "antibiotic era." Before antibiotics, even simple infections could be life-threatening.
Antibiotics come in many forms—pills, liquids, creams, and injections—and are used to treat a wide range of bacterial illnesses, including pneumonia, skin infections, ear infections, and urinary tract infections. However, they are ineffective against viral infections like the common cold, flu, or COVID-19.
The increasing overuse and misuse of antibiotics have led to a serious global health threat: antibiotic resistance. When bacteria are repeatedly exposed to antibiotics, some can evolve and develop mechanisms to survive, becoming "antibiotic-resistant." These resistant bacteria can then spread, making infections harder—and sometimes impossible—to treat. This is why it's crucial to only take antibiotics when prescribed by a doctor, complete the full course of treatment even if you feel better, and practice good hygiene to prevent infections in the first place.
So, while antibiotics are life-saving drugs, they're not a cure-all, and their effectiveness relies on responsible use to protect us from the growing threat of antibiotic resistance. They're powerful allies in fighting bacterial diseases but require careful stewardship for future generations.
Examples
- 1
Prescription
The doctor prescribed an antibiotic for her ear infection.
- 2
Taking medicine
This antibiotic should be taken with food.
- 3
Current treatment
He's been on antibiotics since Monday, so he can't drink alcohol right now.
Phrase
be on antibiotics
be taking this medicine as a treatment
- 4
Complete treatment
Even though she felt better, she finished the full course of antibiotics.
Phrase
a course of antibiotics
the complete treatment over several days
- 5
Resistance risk
Using antibiotics when they aren't needed can lead to antibiotic resistance.
Domain
antibiotic resistance
when bacteria no longer respond to these medicines
Forms and spellings
2 forms open this card.
Main spelling
- antibioticnounadjective
Forms
- antibioticspluralnounadjective