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noun Uncommon

antibiotic

an-tee-beye-OT-ihk
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Antibiotic (noun) means a medicine that kills bacteria or stops them from growing, used to treat bacterial infections. Example: “The doctor prescribed a course of antibiotics for her ear infection.”

noun
1
A medicine that kills bacteria or stops them from growing, used to treat bacterial infections.
"The doctor prescribed a course of antibiotics for her ear infection."
"Overusing antibiotics has led to bacteria that are harder to treat."
adj
1
Relating to substances that fight bacterial infection.
"The cream has antibiotic properties that help prevent the cut from getting infected."

How to use antibiotic

Learner’s notes

In plain EnglishA drug that fights off bacteria, not viruses.

Common mistake

Antibiotics treat bacterial infections, not viral ones like the common cold or flu — taking them for a virus doesn't help and can contribute to resistance.

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Word forms

Plural
antibiotics
Comparative
more antibiotic
Superlative
most antibiotic
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Fill the gap

Can you complete this real example?

The doctor prescribed a course of _____ for her ear infection.

Etymology

Borrowed from French antibiotique, built from anti- ("against") and -biotic ("relating to life," from Greek bios).

Origin: Latin

antibiotic drug

Antonyms

Related words

Rhymes for antibiotic

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Frequently asked questions

What does “antibiotic” mean?
The word “antibiotic” means a medicine that kills bacteria or stops them from growing, used to treat bacterial infections. In plain terms, a drug that fights off bacteria, not viruses.
How do you pronounce “antibiotic”?
“Antibiotic” is pronounced an-tee-beye-OT-ihk (/ˌæn.taɪ.baɪˈɑ.tɪk/ in IPA).
How do you use “antibiotic” in a sentence?
Here is “antibiotic” used in a sentence: “The doctor prescribed a course of antibiotics for her ear infection.”
What part of speech is “antibiotic”?
Depending on how it is used, “antibiotic” can be a noun and an adjective.
Where does the word “antibiotic” come from?
The word “antibiotic” comes from Latin. Borrowed from French antibiotique, built from anti- ("against") and -biotic ("relating to life," from Greek bios).
Is “antibiotic” a common word?
“Antibiotic” is an uncommon word in modern English.
How many meanings does “antibiotic” have?
“Antibiotic” has 2 distinct senses listed in this dictionary. The most common is: a medicine that kills bacteria or stops them from growing, used to treat bacterial infections.

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